31712808923 has 2 divisors, whose sum is σ = 31712808924. Its totient is φ = 31712808922.

The previous prime is 31712808913. The next prime is 31712808989. The reversal of 31712808923 is 32980821713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31712808923 - 2¹⁴ = 31712792539 is a prime.

It is not a weakly prime, because it can be changed into another prime (31712808913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15856404461 + 15856404462.

It is an arithmetic number, because the mean of its divisors is an integer number (15856404462).

Almost surely, 2^31712808923 is an apocalyptic number.

31712808923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31712808923 is an equidigital number, since it uses as much as digits as its factorization.

31712808923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 31712808923 in words is "thirty-one billion, seven hundred twelve million, eight hundred eight thousand, nine hundred twenty-three".