31253112406243 has 16 divisors (see below), whose sum is σ = 38478832987840. Its totient is φ = 24719081942016.

The previous prime is 31253112406237. The next prime is 31253112406247. The reversal of 31253112406243 is 34260421135213.

It is a de Polignac number, because none of the positive numbers 2^k-31253112406243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31253112406247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59845158 + ... + 60365131.

It is an arithmetic number, because the mean of its divisors is an integer number (2404927061740).

Almost surely, 2^{31253112406243} is an apocalyptic number.

31253112406243 is a deficient number, since it is larger than the sum of its proper divisors (7225720581597).

31253112406243 is a wasteful number, since it uses less digits than its factorization.

31253112406243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120213166.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 31253112406243 in words is "thirty-one trillion, two hundred fifty-three billion, one hundred twelve million, four hundred six thousand, two hundred forty-three".