31112300302212 has 48 divisors (see below), whose sum is σ = 73965898440000. Its totient is φ = 10174980885888.

The previous prime is 31112300302211. The next prime is 31112300302231. The reversal of 31112300302212 is 21220300321113.

It is not an unprimeable number, because it can be changed into a prime (31112300302211) 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, 74521198 + ... + 74937530.

It is an arithmetic number, because the mean of its divisors is an integer number (1540956217500).

Almost surely, 2^{31112300302212} is an apocalyptic number.

It is an amenable number.

31112300302212 is an abundant number, since it is smaller than the sum of its proper divisors (42853598137788).

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

31112300302212 is a wasteful number, since it uses less digits than its factorization.

31112300302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533892 (or 533890 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31112300302212 its reverse (21220300321113), we get a palindrome (52332600623325).

The spelling of 31112300302212 in words is "thirty-one trillion, one hundred twelve billion, three hundred million, three hundred two thousand, two hundred twelve".