2123255156 has 12 divisors (see below), whose sum is σ = 4053487200. Its totient is φ = 965115960.

The previous prime is 2123255119. The next prime is 2123255179. The reversal of 2123255156 is 6515523212.

It is a congruent number.

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, 24127856 + ... + 24127943.

It is an arithmetic number, because the mean of its divisors is an integer number (337790600).

Almost surely, 2^2123255156 is an apocalyptic number.

It is an amenable number.

2123255156 is a deficient number, since it is larger than the sum of its proper divisors (1930232044).

2123255156 is a wasteful number, since it uses less digits than its factorization.

2123255156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48255814 (or 48255812 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 2123255156 is about 46078.7929095370. The cubic root of 2123255156 is about 1285.2888177784.

Adding to 2123255156 its reverse (6515523212), we get a palindrome (8638778368).

The spelling of 2123255156 in words is "two billion, one hundred twenty-three million, two hundred fifty-five thousand, one hundred fifty-six".