31100131013291 has 2 divisors, whose sum is σ = 31100131013292. Its totient is φ = 31100131013290.

The previous prime is 31100131013269. The next prime is 31100131013381. The reversal of 31100131013291 is 19231013100113.

It is a weak prime.

It is an emirp because it is prime and its reverse (19231013100113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31100131013291 - 2⁴² = 26702084502187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31100131013291.

It is not a weakly prime, because it can be changed into another prime (31100131013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550065506645 + 15550065506646.

It is an arithmetic number, because the mean of its divisors is an integer number (15550065506646).

Almost surely, 2^{31100131013291} is an apocalyptic number.

31100131013291 is a deficient number, since it is larger than the sum of its proper divisors (1).

31100131013291 is an equidigital number, since it uses as much as digits as its factorization.

31100131013291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 31100131013291 in words is "thirty-one trillion, one hundred billion, one hundred thirty-one million, thirteen thousand, two hundred ninety-one".