31113033023 has 2 divisors, whose sum is σ = 31113033024. Its totient is φ = 31113033022.

The previous prime is 31113032947. The next prime is 31113033071. The reversal of 31113033023 is 32033031113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31113033023 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 31113032986 and 31113033004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31113033923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556516511 + 15556516512.

It is an arithmetic number, because the mean of its divisors is an integer number (15556516512).

Almost surely, 2^31113033023 is an apocalyptic number.

31113033023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113033023 is an equidigital number, since it uses as much as digits as its factorization.

31113033023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 31113033023 its reverse (32033031113), we get a palindrome (63146064136).

The spelling of 31113033023 in words is "thirty-one billion, one hundred thirteen million, thirty-three thousand, twenty-three".