31040542105 has 16 divisors (see below), whose sum is σ = 37712122560. Its totient is φ = 24523686208.

The previous prime is 31040542033. The next prime is 31040542111. The reversal of 31040542105 is 50124504013.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31040542105 - 2⁹ = 31040541593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31040542105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1166691 + ... + 1192999.

It is an arithmetic number, because the mean of its divisors is an integer number (2357007660).

Almost surely, 2^31040542105 is an apocalyptic number.

It is an amenable number.

31040542105 is a deficient number, since it is larger than the sum of its proper divisors (6671580455).

31040542105 is a wasteful number, since it uses less digits than its factorization.

31040542105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29240.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 31040542105 in words is "thirty-one billion, forty million, five hundred forty-two thousand, one hundred five".