2122313123 has 4 divisors (see below), whose sum is σ = 2425500720. Its totient is φ = 1819125528.

The previous prime is 2122313107. The next prime is 2122313161. The reversal of 2122313123 is 3213132212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2122313123 - 2⁴ = 2122313107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122313095 and 2122313104.

It is not an unprimeable number, because it can be changed into a prime (2122313183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151593788 + ... + 151593801.

It is an arithmetic number, because the mean of its divisors is an integer number (606375180).

Almost surely, 2^2122313123 is an apocalyptic number.

2122313123 is a deficient number, since it is larger than the sum of its proper divisors (303187597).

2122313123 is an equidigital number, since it uses as much as digits as its factorization.

2122313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303187596.

The product of its digits is 432, while the sum is 20.

The square root of 2122313123 is about 46068.5697954690. The cubic root of 2122313123 is about 1285.0987066047.

Adding to 2122313123 its reverse (3213132212), we get a palindrome (5335445335).

The spelling of 2122313123 in words is "two billion, one hundred twenty-two million, three hundred thirteen thousand, one hundred twenty-three".