31013220011233 has 2 divisors, whose sum is σ = 31013220011234. Its totient is φ = 31013220011232.

The previous prime is 31013220011167. The next prime is 31013220011273. The reversal of 31013220011233 is 33211002231013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29025026950144 + 1988193061089 = 5387488^2 + 1410033^2 .

It is a cyclic number.

It is not a de Polignac number, because 31013220011233 - 2²⁵ = 31013186456801 is a prime.

It is not a weakly prime, because it can be changed into another prime (31013220011273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506610005616 + 15506610005617.

It is an arithmetic number, because the mean of its divisors is an integer number (15506610005617).

Almost surely, 2^{31013220011233} is an apocalyptic number.

It is an amenable number.

31013220011233 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013220011233 is an equidigital number, since it uses as much as digits as its factorization.

31013220011233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31013220011233 its reverse (33211002231013), we get a palindrome (64224222242246).

The spelling of 31013220011233 in words is "thirty-one trillion, thirteen billion, two hundred twenty million, eleven thousand, two hundred thirty-three".