31240374042020 has 48 divisors (see below), whose sum is σ = 77074153587648. Its totient is φ = 10486279397760.

The previous prime is 31240374042001. The next prime is 31240374042023. The reversal of 31240374042020 is 2024047304213.

It is not an unprimeable number, because it can be changed into a prime (31240374042023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5461600994 + ... + 5461606713.

It is an arithmetic number, because the mean of its divisors is an integer number (1605711533076).

Almost surely, 2^{31240374042020} is an apocalyptic number.

It is an amenable number.

31240374042020 is an abundant number, since it is smaller than the sum of its proper divisors (45833779545628).

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

31240374042020 is a wasteful number, since it uses less digits than its factorization.

31240374042020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923207740 (or 10923207738 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The spelling of 31240374042020 in words is "thirty-one trillion, two hundred forty billion, three hundred seventy-four million, forty-two thousand, twenty".