2123320023 has 24 divisors (see below), whose sum is σ = 3347285760. Its totient is φ = 1286303760.

The previous prime is 2123320021. The next prime is 2123320033. The reversal of 2123320023 is 3200233212.

It is a happy number.

It is not a de Polignac number, because 2123320023 - 2¹ = 2123320021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123319978 and 2123320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123320021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427090 + ... + 432032.

It is an arithmetic number, because the mean of its divisors is an integer number (139470240).

Almost surely, 2^2123320023 is an apocalyptic number.

2123320023 is a deficient number, since it is larger than the sum of its proper divisors (1223965737).

2123320023 is a wasteful number, since it uses less digits than its factorization.

2123320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9299 (or 9296 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2123320023 is about 46079.4967745960. The cubic root of 2123320023 is about 1285.3019064833.

Adding to 2123320023 its reverse (3200233212), we get a palindrome (5323553235).

The spelling of 2123320023 in words is "two billion, one hundred twenty-three million, three hundred twenty thousand, twenty-three".