23331031313 has 2 divisors, whose sum is σ = 23331031314. Its totient is φ = 23331031312.

The previous prime is 23331031271. The next prime is 23331031327. The reversal of 23331031313 is 31313013332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12501923344 + 10829107969 = 111812^2 + 104063^2 .

It is a cyclic number.

It is not a de Polignac number, because 23331031313 - 2¹⁸ = 23330769169 is a prime.

It is not a weakly prime, because it can be changed into another prime (23331031333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665515656 + 11665515657.

It is an arithmetic number, because the mean of its divisors is an integer number (11665515657).

Almost surely, 2^23331031313 is an apocalyptic number.

It is an amenable number.

23331031313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331031313 is an equidigital number, since it uses as much as digits as its factorization.

23331031313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 23331031313 its reverse (31313013332), we get a palindrome (54644044645).

The spelling of 23331031313 in words is "twenty-three billion, three hundred thirty-one million, thirty-one thousand, three hundred thirteen".