31838801117 has 2 divisors, whose sum is σ = 31838801118. Its totient is φ = 31838801116.

The previous prime is 31838801051. The next prime is 31838801161. The reversal of 31838801117 is 71110883813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22833929881 + 9004871236 = 151109^2 + 94894^2 .

It is a cyclic number.

It is not a de Polignac number, because 31838801117 - 2¹⁶ = 31838735581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31838801167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15919400558 + 15919400559.

It is an arithmetic number, because the mean of its divisors is an integer number (15919400559).

Almost surely, 2^31838801117 is an apocalyptic number.

It is an amenable number.

31838801117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31838801117 is an equidigital number, since it uses as much as digits as its factorization.

31838801117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 41.

The spelling of 31838801117 in words is "thirty-one billion, eight hundred thirty-eight million, eight hundred one thousand, one hundred seventeen".