4000232321 has 4 divisors (see below), whose sum is σ = 4039069632. Its totient is φ = 3961395012.

The previous prime is 4000232297. The next prime is 4000232323. The reversal of 4000232321 is 1232320004.

4000232321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4000232321 - 2²⁶ = 3933123457 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 4000232321.

It is not an unprimeable number, because it can be changed into a prime (4000232323) 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, 19418501 + ... + 19418706.

It is an arithmetic number, because the mean of its divisors is an integer number (1009767408).

Almost surely, 2^4000232321 is an apocalyptic number.

It is an amenable number.

4000232321 is a deficient number, since it is larger than the sum of its proper divisors (38837311).

4000232321 is a wasteful number, since it uses less digits than its factorization.

4000232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38837310.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4000232321 is about 63247.3898354707. The cubic root of 4000232321 is about 1587.4317835899.

Adding to 4000232321 its reverse (1232320004), we get a palindrome (5232552325).

The spelling of 4000232321 in words is "four billion, two hundred thirty-two thousand, three hundred twenty-one".