31244421412 has 24 divisors (see below), whose sum is σ = 55216589120. Its totient is φ = 15468446880.

The previous prime is 31244421379. The next prime is 31244421437. The reversal of 31244421412 is 21412444213.

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, 644113 + ... + 690919.

Almost surely, 2^31244421412 is an apocalyptic number.

It is an amenable number.

31244421412 is a deficient number, since it is larger than the sum of its proper divisors (23972167708).

31244421412 is a wasteful number, since it uses less digits than its factorization.

31244421412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48451 (or 48449 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 31244421412 its reverse (21412444213), we get a palindrome (52656865625).

The spelling of 31244421412 in words is "thirty-one billion, two hundred forty-four million, four hundred twenty-one thousand, four hundred twelve".