31233891835457 has 2 divisors, whose sum is σ = 31233891835458. Its totient is φ = 31233891835456.

The previous prime is 31233891835417. The next prime is 31233891835507. The reversal of 31233891835457 is 75453819833213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31233891835441 + 16 = 5588729^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233891835457 - 2¹⁰ = 31233891834433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31233891835457.

It is not a weakly prime, because it can be changed into another prime (31233891835417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616945917728 + 15616945917729.

It is an arithmetic number, because the mean of its divisors is an integer number (15616945917729).

Almost surely, 2^{31233891835457} is an apocalyptic number.

It is an amenable number.

31233891835457 is a deficient number, since it is larger than the sum of its proper divisors (1).

31233891835457 is an equidigital number, since it uses as much as digits as its factorization.

31233891835457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65318400, while the sum is 62.

The spelling of 31233891835457 in words is "thirty-one trillion, two hundred thirty-three billion, eight hundred ninety-one million, eight hundred thirty-five thousand, four hundred fifty-seven".