2311323320023 has 2 divisors, whose sum is σ = 2311323320024. Its totient is φ = 2311323320022.

The previous prime is 2311323319979. The next prime is 2311323320027. The reversal of 2311323320023 is 3200233231132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311323320023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311323320023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311323320027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155661660011 + 1155661660012.

It is an arithmetic number, because the mean of its divisors is an integer number (1155661660012).

Almost surely, 2^{2311323320023} is an apocalyptic number.

2311323320023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311323320023 is an equidigital number, since it uses as much as digits as its factorization.

2311323320023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 2311323320023 its reverse (3200233231132), we get a palindrome (5511556551155).

The spelling of 2311323320023 in words is "two trillion, three hundred eleven billion, three hundred twenty-three million, three hundred twenty thousand, twenty-three".