31142332112 has 40 divisors (see below), whose sum is σ = 60643904256. Its totient is φ = 15492494336.

The previous prime is 31142332093. The next prime is 31142332159. The reversal of 31142332112 is 21123324113.

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, 2631713 + ... + 2643519.

Almost surely, 2^31142332112 is an apocalyptic number.

It is an amenable number.

31142332112 is a deficient number, since it is larger than the sum of its proper divisors (29501572144).

31142332112 is a wasteful number, since it uses less digits than its factorization.

31142332112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12635 (or 12629 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 31142332112 its reverse (21123324113), we get a palindrome (52265656225).

The spelling of 31142332112 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty-two thousand, one hundred twelve".