2120125312 has 16 divisors (see below), whose sum is σ = 4223687400. Its totient is φ = 1060062592.

The previous prime is 2120125307. The next prime is 2120125327. The reversal of 2120125312 is 2135210212.

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 2120125312.

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, 8281612 + ... + 8281867.

Almost surely, 2^2120125312 is an apocalyptic number.

It is an amenable number.

2120125312 is a deficient number, since it is larger than the sum of its proper divisors (2103562088).

2120125312 is an equidigital number, since it uses as much as digits as its factorization.

2120125312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16563493 (or 16563481 counting only the distinct ones).

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

The square root of 2120125312 is about 46044.8185141390. The cubic root of 2120125312 is about 1284.6569684972.

Adding to 2120125312 its reverse (2135210212), we get a palindrome (4255335524).

The spelling of 2120125312 in words is "two billion, one hundred twenty million, one hundred twenty-five thousand, three hundred twelve".