31374856043 has 2 divisors, whose sum is σ = 31374856044. Its totient is φ = 31374856042.

The previous prime is 31374856003. The next prime is 31374856067. The reversal of 31374856043 is 34065847313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31374856043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31374855985 and 31374856003.

It is not a weakly prime, because it can be changed into another prime (31374856003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15687428021 + 15687428022.

It is an arithmetic number, because the mean of its divisors is an integer number (15687428022).

Almost surely, 2^31374856043 is an apocalyptic number.

31374856043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31374856043 is an equidigital number, since it uses as much as digits as its factorization.

31374856043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 31374856043 in words is "thirty-one billion, three hundred seventy-four million, eight hundred fifty-six thousand, forty-three".