31311143411323 has 2 divisors, whose sum is σ = 31311143411324. Its totient is φ = 31311143411322.

The previous prime is 31311143411297. The next prime is 31311143411329. The reversal of 31311143411323 is 32311434111313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31311143411323 - 2³³ = 31302553476731 is a prime.

It is a super-2 number, since 2×31311143411323² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31311143411329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655571705661 + 15655571705662.

It is an arithmetic number, because the mean of its divisors is an integer number (15655571705662).

Almost surely, 2^{31311143411323} is an apocalyptic number.

31311143411323 is a deficient number, since it is larger than the sum of its proper divisors (1).

31311143411323 is an equidigital number, since it uses as much as digits as its factorization.

31311143411323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

Adding to 31311143411323 its reverse (32311434111313), we get a palindrome (63622577522636).

The spelling of 31311143411323 in words is "thirty-one trillion, three hundred eleven billion, one hundred forty-three million, four hundred eleven thousand, three hundred twenty-three".