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12303040131 = 3317183114639
BaseRepresentation
bin10110111010101000…
…10111111010000011
31011202102100012021000
423131110113322003
5200144034241011
65352452503043
7613611054444
oct133524277203
934672305230
1012303040131
115243822168
12247431aa83
131210b88305
14849d832cb
154c0180356
hex2dd517e83

12303040131 has 32 divisors (see below), whose sum is σ = 19310745600. Its totient is φ = 7714811520.

The previous prime is 12303040121. The next prime is 12303040157. The reversal of 12303040131 is 13104030321.

12303040131 is a `hidden beast` number, since 1 + 230 + 3 + 0 + 401 + 31 = 666.

It is not a de Polignac number, because 12303040131 - 27 = 12303040003 is a prime.

It is a super-2 number, since 2×123030401312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12303040121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 833110 + ... + 847748.

It is an arithmetic number, because the mean of its divisors is an integer number (603460800).

Almost surely, 212303040131 is an apocalyptic number.

12303040131 is a deficient number, since it is larger than the sum of its proper divisors (7007705469).

12303040131 is a wasteful number, since it uses less digits than its factorization.

12303040131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16496 (or 16490 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12303040131 its reverse (13104030321), we get a palindrome (25407070452).

The spelling of 12303040131 in words is "twelve billion, three hundred three million, forty thousand, one hundred thirty-one".

Divisors: 1 3 9 17 27 51 153 459 1831 5493 14639 16479 31127 43917 49437 93381 131751 248863 280143 395253 746589 840429 2239767 6719301 26804009 80412027 241236081 455668153 723708243 1367004459 4101013377 12303040131