2101312131102 has 16 divisors (see below), whose sum is σ = 4669582513680. Its totient is φ = 700437377016.

The previous prime is 2101312131001. The next prime is 2101312131131. The reversal of 2101312131102 is 2011312131012.

2101312131102 is a `hidden beast` number, since 210 + 1 + 312 + 131 + 10 + 2 = 666.

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 7 ways as a sum of consecutive naturals, for example, 19456593753 + ... + 19456593860.

It is an arithmetic number, because the mean of its divisors is an integer number (291848907105).

Almost surely, 2^{2101312131102} is an apocalyptic number.

2101312131102 is an abundant number, since it is smaller than the sum of its proper divisors (2568270382578).

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

2101312131102 is a wasteful number, since it uses less digits than its factorization.

2101312131102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38913187624 (or 38913187618 counting only the distinct ones).

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

Adding to 2101312131102 its reverse (2011312131012), we get a palindrome (4112624262114).

The spelling of 2101312131102 in words is "two trillion, one hundred one billion, three hundred twelve million, one hundred thirty-one thousand, one hundred two".