31302101113212 has 24 divisors (see below), whose sum is σ = 73056080715856. Its totient is φ = 10431484449408.

The previous prime is 31302101113181. The next prime is 31302101113223. The reversal of 31302101113212 is 21231110120313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318605713 + ... + 318703944.

Almost surely, 2^{31302101113212} is an apocalyptic number.

It is an amenable number.

31302101113212 is an abundant number, since it is smaller than the sum of its proper divisors (41753979602644).

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

31302101113212 is a wasteful number, since it uses less digits than its factorization.

31302101113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637313757 (or 637313755 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31302101113212 its reverse (21231110120313), we get a palindrome (52533211233525).

The spelling of 31302101113212 in words is "thirty-one trillion, three hundred two billion, one hundred one million, one hundred thirteen thousand, two hundred twelve".