2032320021 has 16 divisors (see below), whose sum is σ = 2781874368. Its totient is φ = 1318966400.

The previous prime is 2032320013. The next prime is 2032320049. The reversal of 2032320021 is 1200232302.

It is a cyclic number.

It is not a de Polignac number, because 2032320021 - 2³ = 2032320013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2032320011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39751 + ... + 75131.

It is an arithmetic number, because the mean of its divisors is an integer number (173867148).

Almost surely, 2^2032320021 is an apocalyptic number.

It is an amenable number.

2032320021 is a deficient number, since it is larger than the sum of its proper divisors (749554347).

2032320021 is a wasteful number, since it uses less digits than its factorization.

2032320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35892.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2032320021 is about 45081.2601975588. The cubic root of 2032320021 is about 1266.6715956025.

Adding to 2032320021 its reverse (1200232302), we get a palindrome (3232552323).

The spelling of 2032320021 in words is "two billion, thirty-two million, three hundred twenty thousand, twenty-one".