31442130232 has 8 divisors (see below), whose sum is σ = 58953994200. Its totient is φ = 15721065112.

The previous prime is 31442130163. The next prime is 31442130263. The reversal of 31442130232 is 23203124413.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 31442130197 and 31442130206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965133132 + ... + 1965133147.

It is an arithmetic number, because the mean of its divisors is an integer number (7369249275).

Almost surely, 2^31442130232 is an apocalyptic number.

It is an amenable number.

31442130232 is a deficient number, since it is larger than the sum of its proper divisors (27511863968).

31442130232 is a wasteful number, since it uses less digits than its factorization.

31442130232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930266285 (or 3930266281 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31442130232 its reverse (23203124413), we get a palindrome (54645254645).

The spelling of 31442130232 in words is "thirty-one billion, four hundred forty-two million, one hundred thirty thousand, two hundred thirty-two".