2123203122 has 48 divisors (see below), whose sum is σ = 4727012472. Its totient is φ = 688343040.

The previous prime is 2123203109. The next prime is 2123203139. The reversal of 2123203122 is 2213023212.

It can be written as a sum of positive squares in 4 ways, for example, as 1493745201 + 629457921 = 38649^2 + 25089^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2123203095 and 2123203104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244438 + ... + 252974.

Almost surely, 2^2123203122 is an apocalyptic number.

2123203122 is an abundant number, since it is smaller than the sum of its proper divisors (2603809350).

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

2123203122 is a wasteful number, since it uses less digits than its factorization.

2123203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923 (or 8920 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2123203122 is about 46078.2282862525. The cubic root of 2123203122 is about 1285.2783182922.

Adding to 2123203122 its reverse (2213023212), we get a palindrome (4336226334).

The spelling of 2123203122 in words is "two billion, one hundred twenty-three million, two hundred three thousand, one hundred twenty-two".