31112221213132 has 48 divisors (see below), whose sum is σ = 57780488808000. Its totient is φ = 14607717230592.

The previous prime is 31112221213127. The next prime is 31112221213141. The reversal of 31112221213132 is 23131212221113.

It is a junction number, because it is equal to n+sod(n) for n = 31112221213097 and 31112221213106.

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, 54394369 + ... + 54963367.

It is an arithmetic number, because the mean of its divisors is an integer number (1203760183500).

Almost surely, 2^{31112221213132} is an apocalyptic number.

It is an amenable number.

31112221213132 is a deficient number, since it is larger than the sum of its proper divisors (26668267594868).

31112221213132 is a wasteful number, since it uses less digits than its factorization.

31112221213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570850 (or 570848 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

Adding to 31112221213132 its reverse (23131212221113), we get a palindrome (54243433434245).

The spelling of 31112221213132 in words is "thirty-one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred thirty-two".