2100342120 has 64 divisors (see below), whose sum is σ = 6309774720. Its totient is φ = 559313664.

The previous prime is 2100342119. The next prime is 2100342143. The reversal of 2100342120 is 212430012.

2100342120 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2100342120² = 8822874042092188800, which contains 22 as substring.

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 2100342120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77382 + ... + 100938.

It is an arithmetic number, because the mean of its divisors is an integer number (98590230).

Almost surely, 2^2100342120 is an apocalyptic number.

2100342120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100342120 is an abundant number, since it is smaller than the sum of its proper divisors (4209432600).

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

2100342120 is a wasteful number, since it uses less digits than its factorization.

2100342120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24314 (or 24310 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2100342120 is about 45829.4896327681. The cubic root of 2100342120 is about 1280.6487027581.

Adding to 2100342120 its reverse (212430012), we get a palindrome (2312772132).

The spelling of 2100342120 in words is "two billion, one hundred million, three hundred forty-two thousand, one hundred twenty".