31623235040923 has 2 divisors, whose sum is σ = 31623235040924. Its totient is φ = 31623235040922.

The previous prime is 31623235040893. The next prime is 31623235041037. The reversal of 31623235040923 is 32904053232613.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31623235040923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31623235040923.

It is not a weakly prime, because it can be changed into another prime (31623235040623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15811617520461 + 15811617520462.

It is an arithmetic number, because the mean of its divisors is an integer number (15811617520462).

Almost surely, 2^{31623235040923} is an apocalyptic number.

31623235040923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31623235040923 is an equidigital number, since it uses as much as digits as its factorization.

31623235040923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 31623235040923 in words is "thirty-one trillion, six hundred twenty-three billion, two hundred thirty-five million, forty thousand, nine hundred twenty-three".