31422333432 has 32 divisors (see below), whose sum is σ = 89778096000. Its totient is φ = 8977809504.

The previous prime is 31422333403. The next prime is 31422333433. The reversal of 31422333432 is 23433322413.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31422333432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422333433) 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, 93518682 + ... + 93519017.

It is an arithmetic number, because the mean of its divisors is an integer number (2805565500).

Almost surely, 2^31422333432 is an apocalyptic number.

It is an amenable number.

31422333432 is an abundant number, since it is smaller than the sum of its proper divisors (58355762568).

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

31422333432 is a wasteful number, since it uses less digits than its factorization.

31422333432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187037715 (or 187037711 counting only the distinct ones).

The product of its digits is 31104, while the sum is 30.

Adding to 31422333432 its reverse (23433322413), we get a palindrome (54855655845).

The spelling of 31422333432 in words is "thirty-one billion, four hundred twenty-two million, three hundred thirty-three thousand, four hundred thirty-two".