2102131612 has 24 divisors (see below), whose sum is σ = 4206142080. Its totient is φ = 900510960.

The previous prime is 2102131601. The next prime is 2102131627. The reversal of 2102131612 is 2161312012.

It is a self number, because there is not a number n which added to its sum of digits gives 2102131612.

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, 51939 + ... + 83077.

It is an arithmetic number, because the mean of its divisors is an integer number (175255920).

Almost surely, 2^2102131612 is an apocalyptic number.

It is an amenable number.

2102131612 is an abundant number, since it is smaller than the sum of its proper divisors (2104010468).

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

2102131612 is a wasteful number, since it uses less digits than its factorization.

2102131612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33561 (or 33559 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2102131612 is about 45849.0088442487. The cubic root of 2102131612 is about 1281.0123038509.

Adding to 2102131612 its reverse (2161312012), we get a palindrome (4263443624).

The spelling of 2102131612 in words is "two billion, one hundred two million, one hundred thirty-one thousand, six hundred twelve".