31202300117 has 2 divisors, whose sum is σ = 31202300118. Its totient is φ = 31202300116.

The previous prime is 31202300093. The next prime is 31202300131. The reversal of 31202300117 is 71100320213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28552212676 + 2650087441 = 168974^2 + 51479^2 .

It is a cyclic number.

It is not a de Polignac number, because 31202300117 - 2⁸ = 31202299861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31202300147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15601150058 + 15601150059.

It is an arithmetic number, because the mean of its divisors is an integer number (15601150059).

Almost surely, 2^31202300117 is an apocalyptic number.

It is an amenable number.

31202300117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31202300117 is an equidigital number, since it uses as much as digits as its factorization.

31202300117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The spelling of 31202300117 in words is "thirty-one billion, two hundred two million, three hundred thousand, one hundred seventeen".