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131300121012 = 223474214311283
BaseRepresentation
bin111101001001000011…
…0001101100110110100
3110112220112100020100220
41322102012031212310
54122400312333022
6140152441134340
712325511420424
oct1722206154664
9415815306326
10131300121012
115075854a305
122154418a3b0
13c4c63528c8
1464d801c484
15363707985c
hex1e9218d9b4

131300121012 has 96 divisors (see below), whose sum is σ = 314601283584. Its totient is φ = 42601372800.

The previous prime is 131300120981. The next prime is 131300121019. The reversal of 131300121012 is 210121003131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131300120982 and 131300121000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131300121019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102337723 + ... + 102339005.

It is an arithmetic number, because the mean of its divisors is an integer number (3277096704).

Almost surely, 2131300121012 is an apocalyptic number.

131300121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131300121012 is an abundant number, since it is smaller than the sum of its proper divisors (183301162572).

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

131300121012 is a wasteful number, since it uses less digits than its factorization.

131300121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131300121012 its reverse (210121003131), we get a palindrome (341421124143).

The spelling of 131300121012 in words is "one hundred thirty-one billion, three hundred million, one hundred twenty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 421 431 564 842 862 1263 1283 1293 1684 1724 2526 2566 2586 3849 5052 5132 5172 7698 15396 19787 20257 39574 40514 59361 60301 60771 79148 81028 118722 120602 121542 180903 181451 237444 241204 243084 361806 362902 540143 544353 552973 723612 725804 1080286 1088706 1105946 1620429 1658919 2160572 2177412 2211892 3240858 3317838 6481716 6635676 8528197 17056394 25386721 25584591 25989731 34112788 50773442 51169182 51979462 76160163 77969193 101546884 102338364 103958924 152320326 155938386 232801633 304640652 311876772 465603266 698404899 931206532 1396809798 2793619596 10941676751 21883353502 32825030253 43766707004 65650060506 131300121012