31013232264761 has 2 divisors, whose sum is σ = 31013232264762. Its totient is φ = 31013232264760.

The previous prime is 31013232264739. The next prime is 31013232264767. The reversal of 31013232264761 is 16746223231013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25754924654761 + 5258307610000 = 5074931^2 + 2293100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31013232264761 is a prime.

It is not a weakly prime, because it can be changed into another prime (31013232264767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506616132380 + 15506616132381.

It is an arithmetic number, because the mean of its divisors is an integer number (15506616132381).

Almost surely, 2^{31013232264761} is an apocalyptic number.

It is an amenable number.

31013232264761 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013232264761 is an equidigital number, since it uses as much as digits as its factorization.

31013232264761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 41.

Adding to 31013232264761 its reverse (16746223231013), we get a palindrome (47759455495774).

The spelling of 31013232264761 in words is "thirty-one trillion, thirteen billion, two hundred thirty-two million, two hundred sixty-four thousand, seven hundred sixty-one".