31424642412 has 24 divisors (see below), whose sum is σ = 77183332800. Its totient is φ = 9923571216.

The previous prime is 31424642329. The next prime is 31424642449. The reversal of 31424642412 is 21424642413.

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

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, 68913462 + ... + 68913917.

It is an arithmetic number, because the mean of its divisors is an integer number (3215972200).

Almost surely, 2^31424642412 is an apocalyptic number.

It is an amenable number.

31424642412 is an abundant number, since it is smaller than the sum of its proper divisors (45758690388).

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

31424642412 is a wasteful number, since it uses less digits than its factorization.

31424642412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137827405 (or 137827403 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

Subtracting from 31424642412 its reverse (21424642413), we obtain a palindrome (9999999999).

The spelling of 31424642412 in words is "thirty-one billion, four hundred twenty-four million, six hundred forty-two thousand, four hundred twelve".