2123040156 has 24 divisors (see below), whose sum is σ = 4954723200. Its totient is φ = 707542512.

The previous prime is 2123040137. The next prime is 2123040169. The reversal of 2123040156 is 6510403212.

2123040156 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61545 + ... + 89631.

It is an arithmetic number, because the mean of its divisors is an integer number (206446800).

Almost surely, 2^2123040156 is an apocalyptic number.

It is an amenable number.

2123040156 is an abundant number, since it is smaller than the sum of its proper divisors (2831683044).

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

2123040156 is a wasteful number, since it uses less digits than its factorization.

2123040156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34393 (or 34391 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2123040156 is about 46076.4598900567. The cubic root of 2123040156 is about 1285.2454336970.

Adding to 2123040156 its reverse (6510403212), we get a palindrome (8633443368).

The spelling of 2123040156 in words is "two billion, one hundred twenty-three million, forty thousand, one hundred fifty-six".