31090940500144 has 40 divisors (see below), whose sum is σ = 68844594075680. Its totient is φ = 13324617427968.

The previous prime is 31090940500129. The next prime is 31090940500159. The reversal of 31090940500144 is 44100504909013.

It is an interprime number because it is at equal distance from previous prime (31090940500129) and next prime (31090940500159).

It is a junction number, because it is equal to n+sod(n) for n = 31090940500097 and 31090940500106.

It is an unprimeable number.

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, 23892952 + ... + 25160584.

It is an arithmetic number, because the mean of its divisors is an integer number (1721114851892).

Almost surely, 2^{31090940500144} is an apocalyptic number.

It is an amenable number.

31090940500144 is an abundant number, since it is smaller than the sum of its proper divisors (37753653575536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31090940500144 is a wasteful number, since it uses less digits than its factorization.

31090940500144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486637 (or 1486631 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 31090940500144 in words is "thirty-one trillion, ninety billion, nine hundred forty million, five hundred thousand, one hundred forty-four".