31341375474517 has 2 divisors, whose sum is σ = 31341375474518. Its totient is φ = 31341375474516.

The previous prime is 31341375474469. The next prime is 31341375474611. The reversal of 31341375474517 is 71547457314313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31333282492996 + 8092981521 = 5597614^2 + 89961^2 .

It is a cyclic number.

It is not a de Polignac number, because 31341375474517 - 2³⁵ = 31307015736149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31341375474917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670687737258 + 15670687737259.

It is an arithmetic number, because the mean of its divisors is an integer number (15670687737259).

Almost surely, 2^{31341375474517} is an apocalyptic number.

It is an amenable number.

31341375474517 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341375474517 is an equidigital number, since it uses as much as digits as its factorization.

31341375474517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14817600, while the sum is 55.

The spelling of 31341375474517 in words is "thirty-one trillion, three hundred forty-one billion, three hundred seventy-five million, four hundred seventy-four thousand, five hundred seventeen".