2121022323 has 24 divisors (see below), whose sum is σ = 3707335008. Its totient is φ = 1140717312.

The previous prime is 2121022261. The next prime is 2121022327. The reversal of 2121022323 is 3232201212.

It is not a de Polignac number, because 2121022323 - 2⁶ = 2121022259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121022296 and 2121022305.

It is not an unprimeable number, because it can be changed into a prime (2121022327) 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, 989136 + ... + 991277.

It is an arithmetic number, because the mean of its divisors is an integer number (154472292).

Almost surely, 2^2121022323 is an apocalyptic number.

2121022323 is a deficient number, since it is larger than the sum of its proper divisors (1586312685).

2121022323 is a wasteful number, since it uses less digits than its factorization.

2121022323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980443 (or 1980440 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2121022323 is about 46054.5581131770. The cubic root of 2121022323 is about 1284.8381195744.

Adding to 2121022323 its reverse (3232201212), we get a palindrome (5353223535).

The spelling of 2121022323 in words is "two billion, one hundred twenty-one million, twenty-two thousand, three hundred twenty-three".