31415112212 has 48 divisors (see below), whose sum is σ = 62943979392. Its totient is φ = 13579716480.

The previous prime is 31415112203. The next prime is 31415112229. The reversal of 31415112212 is 21221151413.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85358 + ... + 264794.

It is an arithmetic number, because the mean of its divisors is an integer number (1311332904).

Almost surely, 2^31415112212 is an apocalyptic number.

It is an amenable number.

31415112212 is an abundant number, since it is smaller than the sum of its proper divisors (31528867180).

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

31415112212 is a wasteful number, since it uses less digits than its factorization.

31415112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179648 (or 179646 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

Adding to 31415112212 its reverse (21221151413), we get a palindrome (52636263625).

The spelling of 31415112212 in words is "thirty-one billion, four hundred fifteen million, one hundred twelve thousand, two hundred twelve".