2123123122 has 32 divisors (see below), whose sum is σ = 3306152304. Its totient is φ = 1021766400.

The previous prime is 2123123063. The next prime is 2123123143. The reversal of 2123123122 is 2213213212.

It can be written as a sum of positive squares in 8 ways, for example, as 1295928001 + 827195121 = 35999^2 + 28761^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2123123122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3924172 + ... + 3924712.

Almost surely, 2^2123123122 is an apocalyptic number.

2123123122 is a deficient number, since it is larger than the sum of its proper divisors (1183029182).

2123123122 is a wasteful number, since it uses less digits than its factorization.

2123123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its digits is 288, while the sum is 19.

The square root of 2123123122 is about 46077.3601891428. The cubic root of 2123123122 is about 1285.2621754566.

Adding to 2123123122 its reverse (2213213212), we get a palindrome (4336336334).

The spelling of 2123123122 in words is "two billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred twenty-two".