12256363497431 has 2 divisors, whose sum is σ = 12256363497432. Its totient is φ = 12256363497430.

The previous prime is 12256363497353. The next prime is 12256363497439. The reversal of 12256363497431 is 13479436365221.

12256363497431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13479436365221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12256363497431 is a prime.

It is a super-2 number, since 2×12256363497431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12256363497439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128181748715 + 6128181748716.

It is an arithmetic number, because the mean of its divisors is an integer number (6128181748716).

Almost surely, 2^{12256363497431} is an apocalyptic number.

12256363497431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12256363497431 is an equidigital number, since it uses as much as digits as its factorization.

12256363497431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 56.

The spelling of 12256363497431 in words is "twelve trillion, two hundred fifty-six billion, three hundred sixty-three million, four hundred ninety-seven thousand, four hundred thirty-one".