31312323322123 has 2 divisors, whose sum is σ = 31312323322124. Its totient is φ = 31312323322122.

The previous prime is 31312323322081. The next prime is 31312323322129. The reversal of 31312323322123 is 32122332321313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312323322123 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312323322129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656161661061 + 15656161661062.

It is an arithmetic number, because the mean of its divisors is an integer number (15656161661062).

Almost surely, 2^{31312323322123} is an apocalyptic number.

31312323322123 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312323322123 is an equidigital number, since it uses as much as digits as its factorization.

31312323322123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 31.

Adding to 31312323322123 its reverse (32122332321313), we get a palindrome (63434655643436).

The spelling of 31312323322123 in words is "thirty-one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred twenty-two thousand, one hundred twenty-three".