32304013231 has 4 divisors (see below), whose sum is σ = 36918872272. Its totient is φ = 27689154192.

The previous prime is 32304013223. The next prime is 32304013253. The reversal of 32304013231 is 13231040323.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 32304013231 - 2³ = 32304013223 is a prime.

It is a super-2 number, since 2×32304013231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32304013531) 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, 2307429510 + ... + 2307429523.

It is an arithmetic number, because the mean of its divisors is an integer number (9229718068).

Almost surely, 2^32304013231 is an apocalyptic number.

32304013231 is a deficient number, since it is larger than the sum of its proper divisors (4614859041).

32304013231 is an equidigital number, since it uses as much as digits as its factorization.

32304013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614859040.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 32304013231 its reverse (13231040323), we get a palindrome (45535053554).

The spelling of 32304013231 in words is "thirty-two billion, three hundred four million, thirteen thousand, two hundred thirty-one".