2311122123 has 12 divisors (see below), whose sum is σ = 3338937888. Its totient is φ = 1540447920.

The previous prime is 2311122091. The next prime is 2311122127. The reversal of 2311122123 is 3212211132.

It is not a de Polignac number, because 2311122123 - 2⁵ = 2311122091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311122096 and 2311122105.

It is not an unprimeable number, because it can be changed into a prime (2311122127) 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, 30153 + ... + 74373.

It is an arithmetic number, because the mean of its divisors is an integer number (278244824).

Almost surely, 2^2311122123 is an apocalyptic number.

2311122123 is a deficient number, since it is larger than the sum of its proper divisors (1027815765).

2311122123 is a wasteful number, since it uses less digits than its factorization.

2311122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50034 (or 50031 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2311122123 is about 48074.1315366175. The cubic root of 2311122123 is about 1322.1304216584.

Adding to 2311122123 its reverse (3212211132), we get a palindrome (5523333255).

The spelling of 2311122123 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, one hundred twenty-three".