31105407158 has 16 divisors (see below), whose sum is σ = 53325821184. Its totient is φ = 13330322280.

The previous prime is 31105407121. The next prime is 31105407181. The reversal of 31105407158 is 85170450113.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 599303 + ... + 649133.

It is an arithmetic number, because the mean of its divisors is an integer number (3332863824).

Almost surely, 2^31105407158 is an apocalyptic number.

31105407158 is a deficient number, since it is larger than the sum of its proper divisors (22220414026).

31105407158 is a wasteful number, since it uses less digits than its factorization.

31105407158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94427.

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 31105407158 in words is "thirty-one billion, one hundred five million, four hundred seven thousand, one hundred fifty-eight".