2121032323 has 4 divisors (see below), whose sum is σ = 2121150928. Its totient is φ = 2120913720.

The previous prime is 2121032311. The next prime is 2121032351. The reversal of 2121032323 is 3232301212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2121032323 - 2²¹ = 2118935171 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121032323.

It is not an unprimeable number, because it can be changed into a prime (2121632323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26388 + ... + 70273.

It is an arithmetic number, because the mean of its divisors is an integer number (530287732).

Almost surely, 2^2121032323 is an apocalyptic number.

2121032323 is a deficient number, since it is larger than the sum of its proper divisors (118605).

2121032323 is an equidigital number, since it uses as much as digits as its factorization.

2121032323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118604.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2121032323 is about 46054.6666799359. Note that the first 4 decimals coincide. The cubic root of 2121032323 is about 1284.8401387833.

Adding to 2121032323 its reverse (3232301212), we get a palindrome (5353333535).

The spelling of 2121032323 in words is "two billion, one hundred twenty-one million, thirty-two thousand, three hundred twenty-three".