2121002323 has 32 divisors (see below), whose sum is σ = 2411182080. Its totient is φ = 1849200000.

The previous prime is 2121002321. The next prime is 2121002347. The reversal of 2121002323 is 3232001212.

It is a cyclic number.

It is not a de Polignac number, because 2121002323 - 2¹ = 2121002321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121002297 and 2121002306.

It is not an unprimeable number, because it can be changed into a prime (2121002321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7884633 + ... + 7884901.

It is an arithmetic number, because the mean of its divisors is an integer number (75349440).

Almost surely, 2^2121002323 is an apocalyptic number.

2121002323 is a deficient number, since it is larger than the sum of its proper divisors (290179757).

2121002323 is a wasteful number, since it uses less digits than its factorization.

2121002323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579.

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

The square root of 2121002323 is about 46054.3409788914. The cubic root of 2121002323 is about 1284.8340811377.

Adding to 2121002323 its reverse (3232001212), we get a palindrome (5353003535).

The spelling of 2121002323 in words is "two billion, one hundred twenty-one million, two thousand, three hundred twenty-three".