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12021231310010 = 25131722313911691
BaseRepresentation
bin1010111011101110100100…
…1110001101010010111010
31120120012220021112101211122
42232323221032031102322
53033423440203410020
641322251042425242
72350335214120346
oct256735116152272
946505807471748
1012021231310010
1139151a27552aa
121421966062222
1369279c202010
142d7b8b624626
1515ca76d0e125
hexaeee938d4ba

12021231310010 has 96 divisors (see below), whose sum is σ = 25830339357312. Its totient is φ = 3995882542080.

The previous prime is 12021231309883. The next prime is 12021231310013. The reversal of 12021231310010 is 1001313212021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (12021231310013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6091736 + ... + 7819955.

It is an arithmetic number, because the mean of its divisors is an integer number (269066034972).

Almost surely, 212021231310010 is an apocalyptic number.

12021231310010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021231310010 is an abundant number, since it is smaller than the sum of its proper divisors (13809108047302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12021231310010 is a wasteful number, since it uses less digits than its factorization.

12021231310010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911768 (or 13911751 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12021231310010 its reverse (1001313212021), we get a palindrome (13022544522031).

The spelling of 12021231310010 in words is "twelve trillion, twenty-one billion, two hundred thirty-one million, three hundred ten thousand, ten".

Divisors: 1 2 5 10 13 17 23 26 34 46 65 85 115 130 170 221 230 289 299 391 442 578 598 782 1105 1445 1495 1955 2210 2890 2990 3757 3910 5083 6647 7514 10166 13294 18785 25415 33235 37570 50830 66470 86411 172822 432055 864110 13911691 27823382 69558455 139116910 180851983 236498747 319968893 361703966 472997494 639937786 904259915 1182493735 1599844465 1808519830 2364987470 3074483711 3199688930 4020478699 4159595609 5439471181 6148967422 8040957398 8319191218 10878942362 15372418555 20102393495 20797978045 27197355905 30744837110 40204786990 41595956090 52266223087 54394711810 70713125353 92471010077 104532446174 141426250706 184942020154 261331115435 353565626765 462355050385 522662230870 707131253530 924710100770 1202123131001 2404246262002 6010615655005 12021231310010