31033020112961 has 2 divisors, whose sum is σ = 31033020112962. Its totient is φ = 31033020112960.

The previous prime is 31033020112949. The next prime is 31033020113057. The reversal of 31033020112961 is 16921102033013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29020469314225 + 2012550798736 = 5387065^2 + 1418644^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033020112961 - 2¹⁴ = 31033020096577 is a prime.

It is not a weakly prime, because it can be changed into another prime (31033020112901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15516510056480 + 15516510056481.

It is an arithmetic number, because the mean of its divisors is an integer number (15516510056481).

Almost surely, 2^{31033020112961} is an apocalyptic number.

It is an amenable number.

31033020112961 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033020112961 is an equidigital number, since it uses as much as digits as its factorization.

31033020112961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

Adding to 31033020112961 its reverse (16921102033013), we get a palindrome (47954122145974).

The spelling of 31033020112961 in words is "thirty-one trillion, thirty-three billion, twenty million, one hundred twelve thousand, nine hundred sixty-one".