31423133424 has 40 divisors (see below), whose sum is σ = 82319766912. Its totient is φ = 10326850240.

The previous prime is 31423133411. The next prime is 31423133431. The reversal of 31423133424 is 42433132413.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31423133391 and 31423133400.

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, 4606794 + ... + 4613609.

Almost surely, 2^31423133424 is an apocalyptic number.

It is an amenable number.

31423133424 is an abundant number, since it is smaller than the sum of its proper divisors (50896633488).

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

31423133424 is a wasteful number, since it uses less digits than its factorization.

31423133424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220485 (or 9220479 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 31423133424 its reverse (42433132413), we get a palindrome (73856265837).

The spelling of 31423133424 in words is "thirty-one billion, four hundred twenty-three million, one hundred thirty-three thousand, four hundred twenty-four".