31320210231112 has 64 divisors (see below), whose sum is σ = 64164270139200. Its totient is φ = 14214201507840.

The previous prime is 31320210231061. The next prime is 31320210231119. The reversal of 31320210231112 is 21113201202313.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (31320210231119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265418268 + ... + 265536244.

It is an arithmetic number, because the mean of its divisors is an integer number (1002566720925).

Almost surely, 2^{31320210231112} is an apocalyptic number.

It is an amenable number.

31320210231112 is an abundant number, since it is smaller than the sum of its proper divisors (32844059908088).

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

31320210231112 is a wasteful number, since it uses less digits than its factorization.

31320210231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122686 (or 122682 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31320210231112 its reverse (21113201202313), we get a palindrome (52433411433425).

The spelling of 31320210231112 in words is "thirty-one trillion, three hundred twenty billion, two hundred ten million, two hundred thirty-one thousand, one hundred twelve".