31100003231117 has 2 divisors, whose sum is σ = 31100003231118. Its totient is φ = 31100003231116.

The previous prime is 31100003231069. The next prime is 31100003231119. The reversal of 31100003231117 is 71113230000113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29407074363241 + 1692928867876 = 5422829^2 + 1301126^2 .

It is a cyclic number.

It is not a de Polignac number, because 31100003231117 - 2¹⁴ = 31100003214733 is a prime.

Together with 31100003231119, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 31100003231092 and 31100003231101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31100003231119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550001615558 + 15550001615559.

It is an arithmetic number, because the mean of its divisors is an integer number (15550001615559).

Almost surely, 2^{31100003231117} is an apocalyptic number.

It is an amenable number.

31100003231117 is a deficient number, since it is larger than the sum of its proper divisors (1).

31100003231117 is an equidigital number, since it uses as much as digits as its factorization.

31100003231117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The spelling of 31100003231117 in words is "thirty-one trillion, one hundred billion, three million, two hundred thirty-one thousand, one hundred seventeen".