31382263380 has 48 divisors (see below), whose sum is σ = 94629596544. Its totient is φ = 7724864640.

The previous prime is 31382263373. The next prime is 31382263399. The reversal of 31382263380 is 8336228313.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 20116056 + ... + 20117615.

It is an arithmetic number, because the mean of its divisors is an integer number (1971449928).

Almost surely, 2^31382263380 is an apocalyptic number.

31382263380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31382263380 is an abundant number, since it is smaller than the sum of its proper divisors (63247333164).

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

31382263380 is a wasteful number, since it uses less digits than its factorization.

31382263380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40233696 (or 40233694 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 31382263380 in words is "thirty-one billion, three hundred eighty-two million, two hundred sixty-three thousand, three hundred eighty".