2123120512 has 16 divisors (see below), whose sum is σ = 4229654400. Its totient is φ = 1061560192.

The previous prime is 2123120437. The next prime is 2123120533. The reversal of 2123120512 is 2150213212.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 2123120512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8293312 + ... + 8293567.

It is an arithmetic number, because the mean of its divisors is an integer number (264353400).

Almost surely, 2^2123120512 is an apocalyptic number.

It is an amenable number.

2123120512 is a deficient number, since it is larger than the sum of its proper divisors (2106533888).

2123120512 is an equidigital number, since it uses as much as digits as its factorization.

2123120512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16586893 (or 16586881 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2123120512 is about 46077.3318671991. The cubic root of 2123120512 is about 1285.2616487897.

Adding to 2123120512 its reverse (2150213212), we get a palindrome (4273333724).

The spelling of 2123120512 in words is "two billion, one hundred twenty-three million, one hundred twenty thousand, five hundred twelve".