2131100331112 has 8 divisors (see below), whose sum is σ = 3995813120850. Its totient is φ = 1065550165552.

The previous prime is 2131100331103. The next prime is 2131100331167. The reversal of 2131100331112 is 2111330011312.

It can be written as a sum of positive squares in only one way, i.e., 2130473028996 + 627302116 = 1459614^2 + 25046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2131100331112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133193770687 + ... + 133193770702.

Almost surely, 2^{2131100331112} is an apocalyptic number.

It is an amenable number.

2131100331112 is a deficient number, since it is larger than the sum of its proper divisors (1864712789738).

2131100331112 is a wasteful number, since it uses less digits than its factorization.

2131100331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266387541395 (or 266387541391 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 2131100331112 its reverse (2111330011312), we get a palindrome (4242430342424).

The spelling of 2131100331112 in words is "two trillion, one hundred thirty-one billion, one hundred million, three hundred thirty-one thousand, one hundred twelve".