31322320011023 has 2 divisors, whose sum is σ = 31322320011024. Its totient is φ = 31322320011022.

The previous prime is 31322320011013. The next prime is 31322320011079. The reversal of 31322320011023 is 32011002322313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31322320011023 - 2¹⁶ = 31322319945487 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 31322320011023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322320011013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661160005511 + 15661160005512.

It is an arithmetic number, because the mean of its divisors is an integer number (15661160005512).

Almost surely, 2^{31322320011023} is an apocalyptic number.

31322320011023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322320011023 is an equidigital number, since it uses as much as digits as its factorization.

31322320011023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31322320011023 its reverse (32011002322313), we get a palindrome (63333322333336).

The spelling of 31322320011023 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred twenty million, eleven thousand, twenty-three".