31311303323 has 2 divisors, whose sum is σ = 31311303324. Its totient is φ = 31311303322.

The previous prime is 31311303319. The next prime is 31311303329. The reversal of 31311303323 is 32330311313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31311303323 - 2² = 31311303319 is a prime.

It is not a weakly prime, because it can be changed into another prime (31311303329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655651661 + 15655651662.

It is an arithmetic number, because the mean of its divisors is an integer number (15655651662).

Almost surely, 2^31311303323 is an apocalyptic number.

31311303323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311303323 is an equidigital number, since it uses as much as digits as its factorization.

31311303323 is an odious number, because the sum of its binary digits is odd.

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

Adding to 31311303323 its reverse (32330311313), we get a palindrome (63641614636).

The spelling of 31311303323 in words is "thirty-one billion, three hundred eleven million, three hundred three thousand, three hundred twenty-three".