2123011323 has 64 divisors (see below), whose sum is σ = 3462480000. Its totient is φ = 1279660032.

The previous prime is 2123011309. The next prime is 2123011361. The reversal of 2123011323 is 3231103212.

It is not a de Polignac number, because 2123011323 - 2¹⁷ = 2122880251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123011296 and 2123011305.

It is not an unprimeable number, because it can be changed into a prime (2123011393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4645311 + ... + 4645767.

It is an arithmetic number, because the mean of its divisors is an integer number (54101250).

Almost surely, 2^2123011323 is an apocalyptic number.

2123011323 is a deficient number, since it is larger than the sum of its proper divisors (1339468677).

2123011323 is a wasteful number, since it uses less digits than its factorization.

2123011323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2123011323 is about 46076.1470068842. The cubic root of 2123011323 is about 1285.2396153662.

Adding to 2123011323 its reverse (3231103212), we get a palindrome (5354114535).

The spelling of 2123011323 in words is "two billion, one hundred twenty-three million, eleven thousand, three hundred twenty-three".