31256060512403 has 2 divisors, whose sum is σ = 31256060512404. Its totient is φ = 31256060512402.

The previous prime is 31256060512381. The next prime is 31256060512451. The reversal of 31256060512403 is 30421506065213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31256060512403 - 2⁸ = 31256060512147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31256060515403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15628030256201 + 15628030256202.

It is an arithmetic number, because the mean of its divisors is an integer number (15628030256202).

Almost surely, 2^{31256060512403} is an apocalyptic number.

31256060512403 is a deficient number, since it is larger than the sum of its proper divisors (1).

31256060512403 is an equidigital number, since it uses as much as digits as its factorization.

31256060512403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 31256060512403 its reverse (30421506065213), we get a palindrome (61677566577616).

The spelling of 31256060512403 in words is "thirty-one trillion, two hundred fifty-six billion, sixty million, five hundred twelve thousand, four hundred three".