2123272512 has 42 divisors (see below), whose sum is σ = 6085978938. Its totient is φ = 707757312.

The previous prime is 2123272483. The next prime is 2123272513. The reversal of 2123272512 is 2152723212.

2123272512 is a `hidden beast` number, since 2 + 123 + 27 + 2 + 512 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1895383296 + 227889216 = 43536^2 + 15096^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123272513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1842543 + ... + 1843694.

Almost surely, 2^2123272512 is an apocalyptic number.

It is an amenable number.

2123272512 is an abundant number, since it is smaller than the sum of its proper divisors (3962706426).

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

2123272512 is a wasteful number, since it uses less digits than its factorization.

2123272512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686255 (or 3686242 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2123272512 is about 46078.9812387383. The cubic root of 2123272512 is about 1285.2923198558.

Adding to 2123272512 its reverse (2152723212), we get a palindrome (4275995724).

The spelling of 2123272512 in words is "two billion, one hundred twenty-three million, two hundred seventy-two thousand, five hundred twelve".