10002720120 has 32 divisors (see below), whose sum is σ = 30008160720. Its totient is φ = 2667392000.

The previous prime is 10002720089. The next prime is 10002720127. The reversal of 10002720120 is 2102720001.

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 10002720120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002720127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41677881 + ... + 41678120.

Almost surely, 2^10002720120 is an apocalyptic number.

10002720120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002720120 is an abundant number, since it is smaller than the sum of its proper divisors (20005440600).

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

10002720120 is a wasteful number, since it uses less digits than its factorization.

10002720120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83356015 (or 83356011 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The spelling of 10002720120 in words is "ten billion, two million, seven hundred twenty thousand, one hundred twenty".