2123065812 has 48 divisors (see below), whose sum is σ = 5713473920. Its totient is φ = 601022592.

The previous prime is 2123065799. The next prime is 2123065817. The reversal of 2123065812 is 2185603212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123065812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123065817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106783 + ... + 125094.

Almost surely, 2^2123065812 is an apocalyptic number.

It is an amenable number.

2123065812 is an abundant number, since it is smaller than the sum of its proper divisors (3590408108).

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

2123065812 is a wasteful number, since it uses less digits than its factorization.

2123065812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232000 (or 231998 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2123065812 is about 46076.7382960209. The cubic root of 2123065812 is about 1285.2506108834.

The spelling of 2123065812 in words is "two billion, one hundred twenty-three million, sixty-five thousand, eight hundred twelve".