31306425323 has 2 divisors, whose sum is σ = 31306425324. Its totient is φ = 31306425322.

The previous prime is 31306425287. The next prime is 31306425373. The reversal of 31306425323 is 32352460313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31306425323 - 2²⁰ = 31305376747 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31306425323.

It is not a weakly prime, because it can be changed into another prime (31306425373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15653212661 + 15653212662.

It is an arithmetic number, because the mean of its divisors is an integer number (15653212662).

Almost surely, 2^31306425323 is an apocalyptic number.

31306425323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31306425323 is an equidigital number, since it uses as much as digits as its factorization.

31306425323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 31306425323 its reverse (32352460313), we get a palindrome (63658885636).

The spelling of 31306425323 in words is "thirty-one billion, three hundred six million, four hundred twenty-five thousand, three hundred twenty-three".