2320021123 has 4 divisors (see below), whose sum is σ = 2651452720. Its totient is φ = 1988589528.

The previous prime is 2320021111. The next prime is 2320021139. The reversal of 2320021123 is 3211200232.

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 2320021123 - 2⁵ = 2320021091 is a prime.

It is a super-2 number, since 2×2320021123² = 10764996022332362258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2320021097 and 2320021106.

It is not an unprimeable number, because it can be changed into a prime (2320061123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165715788 + ... + 165715801.

It is an arithmetic number, because the mean of its divisors is an integer number (662863180).

Almost surely, 2^2320021123 is an apocalyptic number.

2320021123 is a deficient number, since it is larger than the sum of its proper divisors (331431597).

2320021123 is an equidigital number, since it uses as much as digits as its factorization.

2320021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331431596.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2320021123 is about 48166.5975858790. The cubic root of 2320021123 is about 1323.8252072762.

Adding to 2320021123 its reverse (3211200232), we get a palindrome (5531221355).

The spelling of 2320021123 in words is "two billion, three hundred twenty million, twenty-one thousand, one hundred twenty-three".