12311031021102 has 48 divisors (see below), whose sum is σ = 29101553573040. Its totient is φ = 3730262515200.

The previous prime is 12311031021073. The next prime is 12311031021151. The reversal of 12311031021102 is 20112013011321.

12311031021102 is a `hidden beast` number, since 1 + 231 + 1 + 0 + 310 + 21 + 102 = 666.

12311031021102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12311031021102² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 839299 + ... + 5032542.

It is an arithmetic number, because the mean of its divisors is an integer number (606282366105).

Almost surely, 2^{12311031021102} is an apocalyptic number.

12311031021102 is an abundant number, since it is smaller than the sum of its proper divisors (16790522551938).

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

12311031021102 is a wasteful number, since it uses less digits than its factorization.

12311031021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882449 (or 5882446 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12311031021102 its reverse (20112013011321), we get a palindrome (32423044032423).

The spelling of 12311031021102 in words is "twelve trillion, three hundred eleven billion, thirty-one million, twenty-one thousand, one hundred two".