2311233123 has 4 divisors (see below), whose sum is σ = 3081644168. Its totient is φ = 1540822080.

The previous prime is 2311233107. The next prime is 2311233151. The reversal of 2311233123 is 3213321132.

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

It is not a de Polignac number, because 2311233123 - 2⁴ = 2311233107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311233123.

It is not an unprimeable number, because it can be changed into a prime (2311233173) 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, 385205518 + ... + 385205523.

It is an arithmetic number, because the mean of its divisors is an integer number (770411042).

Almost surely, 2^2311233123 is an apocalyptic number.

2311233123 is a deficient number, since it is larger than the sum of its proper divisors (770411045).

2311233123 is an equidigital number, since it uses as much as digits as its factorization.

2311233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770411044.

The product of its digits is 648, while the sum is 21.

The square root of 2311233123 is about 48075.2859897890. The cubic root of 2311233123 is about 1322.1515880182.

Adding to 2311233123 its reverse (3213321132), we get a palindrome (5524554255).

The spelling of 2311233123 in words is "two billion, three hundred eleven million, two hundred thirty-three thousand, one hundred twenty-three".