31322331023 has 2 divisors, whose sum is σ = 31322331024. Its totient is φ = 31322331022.

The previous prime is 31322330899. The next prime is 31322331091. The reversal of 31322331023 is 32013322313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31322331023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31322331023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31322331923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661165511 + 15661165512.

It is an arithmetic number, because the mean of its divisors is an integer number (15661165512).

Almost surely, 2^31322331023 is an apocalyptic number.

31322331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322331023 is an equidigital number, since it uses as much as digits as its factorization.

31322331023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31322331023 its reverse (32013322313), we get a palindrome (63335653336).

The spelling of 31322331023 in words is "thirty-one billion, three hundred twenty-two million, three hundred thirty-one thousand, twenty-three".