2120100130320 has 40 divisors (see below), whose sum is σ = 6572310404736. Its totient is φ = 565360034688.

The previous prime is 2120100130319. The next prime is 2120100130361. The reversal of 2120100130320 is 230310010212.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2120100130320.

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, 4416875032 + ... + 4416875511.

Almost surely, 2^{2120100130320} is an apocalyptic number.

2120100130320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120100130320 is an abundant number, since it is smaller than the sum of its proper divisors (4452210274416).

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

2120100130320 is a wasteful number, since it uses less digits than its factorization.

2120100130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833750559 (or 8833750553 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2120100130320 its reverse (230310010212), we get a palindrome (2350410140532).

The spelling of 2120100130320 in words is "two trillion, one hundred twenty billion, one hundred million, one hundred thirty thousand, three hundred twenty".