2311322123 has 4 divisors (see below), whose sum is σ = 2521442328. Its totient is φ = 2101201920.

The previous prime is 2311322113. The next prime is 2311322177. The reversal of 2311322123 is 3212231132.

2311322123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2311322123 - 2⁶ = 2311322059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311322095 and 2311322104.

It is not an unprimeable number, because it can be changed into a prime (2311322113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105060086 + ... + 105060107.

It is an arithmetic number, because the mean of its divisors is an integer number (630360582).

Almost surely, 2^2311322123 is an apocalyptic number.

2311322123 is a deficient number, since it is larger than the sum of its proper divisors (210120205).

2311322123 is a wasteful number, since it uses less digits than its factorization.

2311322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210120204.

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

The square root of 2311322123 is about 48076.2116123972. The cubic root of 2311322123 is about 1322.1685587541.

Adding to 2311322123 its reverse (3212231132), we get a palindrome (5523553255).

Subtracting 2311322123 from its reverse (3212231132), we obtain a palindrome (900909009).

The spelling of 2311322123 in words is "two billion, three hundred eleven million, three hundred twenty-two thousand, one hundred twenty-three".