31110112302197 has 2 divisors, whose sum is σ = 31110112302198. Its totient is φ = 31110112302196.

The previous prime is 31110112302163. The next prime is 31110112302271. The reversal of 31110112302197 is 79120321101113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27737402090161 + 3372710212036 = 5266631^2 + 1836494^2 .

It is an emirp because it is prime and its reverse (79120321101113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31110112302197 - 2²² = 31110108107893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31110012302197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15555056151098 + 15555056151099.

It is an arithmetic number, because the mean of its divisors is an integer number (15555056151099).

Almost surely, 2^{31110112302197} is an apocalyptic number.

It is an amenable number.

31110112302197 is a deficient number, since it is larger than the sum of its proper divisors (1).

31110112302197 is an equidigital number, since it uses as much as digits as its factorization.

31110112302197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 32.

The spelling of 31110112302197 in words is "thirty-one trillion, one hundred ten billion, one hundred twelve million, three hundred two thousand, one hundred ninety-seven".