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12021203233013 = 1322338320993847
BaseRepresentation
bin1010111011101110011110…
…0011000110100011110101
31120120012211022200221102212
42232323213203012203311
53033423411011424023
641322244200543205
72350334423351252
oct256734743064365
946505738627385
1012021203233013
113915188918677
121421958781b05
13692796451400
142d7b879d6429
1515ca74614e78
hexaeee78c68f5

12021203233013 has 48 divisors (see below), whose sum is σ = 13628495462400. Its totient is φ = 10578532041792.

The previous prime is 12021203232971. The next prime is 12021203233129. The reversal of 12021203233013 is 31033230212021.

It is not a de Polignac number, because 12021203233013 - 224 = 12021186455797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 12021203233013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021203233913) 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, 3124823456 + ... + 3124827302.

It is an arithmetic number, because the mean of its divisors is an integer number (283926988800).

Almost surely, 212021203233013 is an apocalyptic number.

12021203233013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12021203233013 is a deficient number, since it is larger than the sum of its proper divisors (1607292229387).

12021203233013 is a wasteful number, since it uses less digits than its factorization.

12021203233013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6378 (or 6365 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12021203233013 its reverse (31033230212021), we get a palindrome (43054433445034).

The spelling of 12021203233013 in words is "twelve trillion, twenty-one billion, two hundred three million, two hundred thirty-three thousand, thirteen".

Divisors: 1 13 23 169 299 383 2099 3847 3887 4979 8809 27287 48277 50011 64727 88481 114517 354731 627601 650143 803917 1150253 1473401 1488721 8074853 8158813 10450921 14953289 18490091 19154213 33888223 104973089 135861973 185721619 240371183 249004769 440546899 1364650157 2414381047 3092668699 3124825379 5727109687 31386953611 40204693087 71131380077 522661010131 924707941001 12021203233013