31213091399458 has 16 divisors (see below), whose sum is σ = 49284117076320. Its totient is φ = 14785061992416.

The previous prime is 31213091399429. The next prime is 31213091399459. The reversal of 31213091399458 is 85499319031213.

It is not an unprimeable number, because it can be changed into a prime (31213091399459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4422885 + ... + 9054727.

It is an arithmetic number, because the mean of its divisors is an integer number (3080257317270).

Almost surely, 2^{31213091399458} is an apocalyptic number.

31213091399458 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

31213091399458 is a deficient number, since it is larger than the sum of its proper divisors (18071025676862).

31213091399458 is a wasteful number, since it uses less digits than its factorization.

31213091399458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4809201.

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 31213091399458 in words is "thirty-one trillion, two hundred thirteen billion, ninety-one million, three hundred ninety-nine thousand, four hundred fifty-eight".