2123130120 has 64 divisors (see below), whose sum is σ = 6419589120. Its totient is φ = 561705984.

The previous prime is 2123130109. The next prime is 2123130131. The reversal of 2123130120 is 210313212.

It is an interprime number because it is at equal distance from previous prime (2123130109) and next prime (2123130131).

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 2123130120.

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, 54417 + ... + 84896.

It is an arithmetic number, because the mean of its divisors is an integer number (100306080).

Almost surely, 2^2123130120 is an apocalyptic number.

2123130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123130120 is an abundant number, since it is smaller than the sum of its proper divisors (4296459000).

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

2123130120 is a wasteful number, since it uses less digits than its factorization.

2123130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139454 (or 139450 counting only the distinct ones).

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

The square root of 2123130120 is about 46077.4361265902. The cubic root of 2123130120 is about 1285.2635875673.

Adding to 2123130120 its reverse (210313212), we get a palindrome (2333443332).

The spelling of 2123130120 in words is "two billion, one hundred twenty-three million, one hundred thirty thousand, one hundred twenty".