31423122132 has 24 divisors (see below), whose sum is σ = 74144448000. Its totient is φ = 10356684096.

The previous prime is 31423122109. The next prime is 31423122187. The reversal of 31423122132 is 23122132413.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14710132 + ... + 14712267.

It is an arithmetic number, because the mean of its divisors is an integer number (3089352000).

Almost surely, 2^31423122132 is an apocalyptic number.

It is an amenable number.

31423122132 is an abundant number, since it is smaller than the sum of its proper divisors (42721325868).

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

31423122132 is a wasteful number, since it uses less digits than its factorization.

31423122132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29422495 (or 29422493 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 31423122132 its reverse (23122132413), we get a palindrome (54545254545).

The spelling of 31423122132 in words is "thirty-one billion, four hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-two".