2123553412 has 12 divisors (see below), whose sum is σ = 3718365196. Its totient is φ = 1061163360.

The previous prime is 2123553353. The next prime is 2123553431. The reversal of 2123553412 is 2143553212.

It can be written as a sum of positive squares in 2 ways, for example, as 16192576 + 2107360836 = 4024^2 + 45906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145503 + ... + 159430.

Almost surely, 2^2123553412 is an apocalyptic number.

It is an amenable number.

2123553412 is a deficient number, since it is larger than the sum of its proper divisors (1594811784).

2123553412 is a wasteful number, since it uses less digits than its factorization.

2123553412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306678 (or 306676 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 2123553412 is about 46082.0291653916. The cubic root of 2123553412 is about 1285.3489969412.

It can be divided in two parts, 21235 and 53412, that added together give a palindrome (74647).

The spelling of 2123553412 in words is "two billion, one hundred twenty-three million, five hundred fifty-three thousand, four hundred twelve".