31232442304 has 56 divisors (see below), whose sum is σ = 70917206400. Its totient is φ = 13368988416.

The previous prime is 31232442299. The next prime is 31232442379. The reversal of 31232442304 is 40324423213.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328347 + ... + 412645.

Almost surely, 2^31232442304 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 31232442304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35458603200).

31232442304 is an abundant number, since it is smaller than the sum of its proper divisors (39684764096).

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

31232442304 is an equidigital number, since it uses as much as digits as its factorization.

31232442304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85145 (or 85135 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31232442304 its reverse (40324423213), we get a palindrome (71556865517).

The spelling of 31232442304 in words is "thirty-one billion, two hundred thirty-two million, four hundred forty-two thousand, three hundred four".