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12104525431 is a prime number
BaseRepresentation
bin10110100010111110…
…00110011001110111
31011020120210121021201
423101133012121313
5144242224303211
65321041553331
7605650524415
oct132137063167
934216717251
1012104525431
115151764129
122419945847
1311aba010ab
1482b86a2b5
154aca1b0c1
hex2d17c6677

12104525431 has 2 divisors, whose sum is σ = 12104525432. Its totient is φ = 12104525430.

The previous prime is 12104525429. The next prime is 12104525467. The reversal of 12104525431 is 13452540121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12104525431 - 21 = 12104525429 is a prime.

It is a super-2 number, since 2×121045254312 (a number of 21 digits) contains 22 as substring.

Together with 12104525429, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12104525431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12104525471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052262715 + 6052262716.

It is an arithmetic number, because the mean of its divisors is an integer number (6052262716).

Almost surely, 212104525431 is an apocalyptic number.

12104525431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12104525431 is an equidigital number, since it uses as much as digits as its factorization.

12104525431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 12104525431 in words is "twelve billion, one hundred four million, five hundred twenty-five thousand, four hundred thirty-one".