2123320113 has 12 divisors (see below), whose sum is σ = 3072197700. Its totient is φ = 1413156096.

The previous prime is 2123320037. The next prime is 2123320127. The reversal of 2123320113 is 3110233212.

It can be written as a sum of positive squares in 2 ways, for example, as 745945344 + 1377374769 = 27312^2 + 37113^2 .

It is not a de Polignac number, because 2123320113 - 2⁸ = 2123319857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123320163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 193588 + ... + 204261.

It is an arithmetic number, because the mean of its divisors is an integer number (256016475).

Almost surely, 2^2123320113 is an apocalyptic number.

It is an amenable number.

2123320113 is a deficient number, since it is larger than the sum of its proper divisors (948877587).

2123320113 is a wasteful number, since it uses less digits than its factorization.

2123320113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398448 (or 398445 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2123320113 is about 46079.4977511691. The cubic root of 2123320113 is about 1285.3019246431.

Adding to 2123320113 its reverse (3110233212), we get a palindrome (5233553325).

The spelling of 2123320113 in words is "two billion, one hundred twenty-three million, three hundred twenty thousand, one hundred thirteen".