32320440231 has 16 divisors (see below), whose sum is σ = 45421054560. Its totient is φ = 20411431040.

The previous prime is 32320440221. The next prime is 32320440233. The reversal of 32320440231 is 13204402323.

It is a cyclic number.

It is not a de Polignac number, because 32320440231 - 2⁵ = 32320440199 is a prime.

It is a super-2 number, since 2×32320440231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32320440233) 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, 3500100 + ... + 3509321.

It is an arithmetic number, because the mean of its divisors is an integer number (2838815910).

Almost surely, 2^32320440231 is an apocalyptic number.

32320440231 is a deficient number, since it is larger than the sum of its proper divisors (13100614329).

32320440231 is a wasteful number, since it uses less digits than its factorization.

32320440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7009506.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 32320440231 its reverse (13204402323), we get a palindrome (45524842554).

The spelling of 32320440231 in words is "thirty-two billion, three hundred twenty million, four hundred forty thousand, two hundred thirty-one".