2123332021 has 8 divisors (see below), whose sum is σ = 2139427584. Its totient is φ = 2107277040.

The previous prime is 2123331983. The next prime is 2123332027. The reversal of 2123332021 is 1202333212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123332021 - 2¹¹ = 2123329973 is a prime.

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 2123332021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123332027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99316 + ... + 118786.

It is an arithmetic number, because the mean of its divisors is an integer number (267428448).

Almost surely, 2^2123332021 is an apocalyptic number.

It is an amenable number.

2123332021 is a deficient number, since it is larger than the sum of its proper divisors (16095563).

2123332021 is a wasteful number, since it uses less digits than its factorization.

2123332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20291.

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

The square root of 2123332021 is about 46079.6269624657. The cubic root of 2123332021 is about 1285.3043273813.

Adding to 2123332021 its reverse (1202333212), we get a palindrome (3325665233).

The spelling of 2123332021 in words is "two billion, one hundred twenty-three million, three hundred thirty-two thousand, twenty-one".