31139033416 has 16 divisors (see below), whose sum is σ = 61820140140. Its totient is φ = 14653662720.

The previous prime is 31139033407. The next prime is 31139033441. The reversal of 31139033416 is 61433093113.

It can be written as a sum of positive squares in 2 ways, for example, as 25646741316 + 5492292100 = 160146^2 + 74110^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114481605 + ... + 114481876.

Almost surely, 2^31139033416 is an apocalyptic number.

It is an amenable number.

31139033416 is a deficient number, since it is larger than the sum of its proper divisors (30681106724).

31139033416 is a wasteful number, since it uses less digits than its factorization.

31139033416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228963504 (or 228963500 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The spelling of 31139033416 in words is "thirty-one billion, one hundred thirty-nine million, thirty-three thousand, four hundred sixteen".