31232099382 has 128 divisors (see below), whose sum is σ = 71053355520. Its totient is φ = 9071063040.

The previous prime is 31232099363. The next prime is 31232099383. The reversal of 31232099382 is 28399023213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232099383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28161844 + ... + 28162952.

It is an arithmetic number, because the mean of its divisors is an integer number (555104340).

Almost surely, 2^31232099382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31232099382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35526677760).

31232099382 is an abundant number, since it is smaller than the sum of its proper divisors (39821256138).

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

31232099382 is a wasteful number, since it uses less digits than its factorization.

31232099382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358.

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 31232099382 in words is "thirty-one billion, two hundred thirty-two million, ninety-nine thousand, three hundred eighty-two".