31382185112 has 32 divisors (see below), whose sum is σ = 60750518400. Its totient is φ = 15182227200.

The previous prime is 31382185073. The next prime is 31382185117. The reversal of 31382185112 is 21158128313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31382185117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694662 + ... + 2706282.

It is an arithmetic number, because the mean of its divisors is an integer number (1898453700).

Almost surely, 2^31382185112 is an apocalyptic number.

It is an amenable number.

31382185112 is a deficient number, since it is larger than the sum of its proper divisors (29368333288).

31382185112 is a wasteful number, since it uses less digits than its factorization.

31382185112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22547 (or 22543 counting only the distinct ones).

The product of its digits is 11520, while the sum is 35.

The spelling of 31382185112 in words is "thirty-one billion, three hundred eighty-two million, one hundred eighty-five thousand, one hundred twelve".