31310114102191 has 2 divisors, whose sum is σ = 31310114102192. Its totient is φ = 31310114102190.

The previous prime is 31310114102173. The next prime is 31310114102221. The reversal of 31310114102191 is 19120141101313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31310114102191 - 2¹⁹ = 31310113577903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31310114802191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655057051095 + 15655057051096.

It is an arithmetic number, because the mean of its divisors is an integer number (15655057051096).

Almost surely, 2^{31310114102191} is an apocalyptic number.

31310114102191 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310114102191 is an equidigital number, since it uses as much as digits as its factorization.

31310114102191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 31310114102191 in words is "thirty-one trillion, three hundred ten billion, one hundred fourteen million, one hundred two thousand, one hundred ninety-one".