31160004040 has 64 divisors (see below), whose sum is σ = 76710965760. Its totient is φ = 11297233920.

The previous prime is 31160004017. The next prime is 31160004077. The reversal of 31160004040 is 4040006113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31160003999 and 31160004017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43209 + ... + 253351.

It is an arithmetic number, because the mean of its divisors is an integer number (1198608840).

Almost surely, 2^31160004040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31160004040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38355482880).

31160004040 is an abundant number, since it is smaller than the sum of its proper divisors (45550961720).

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

31160004040 is a wasteful number, since it uses less digits than its factorization.

31160004040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210502 (or 210498 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The spelling of 31160004040 in words is "thirty-one billion, one hundred sixty million, four thousand, forty".