32001320231 has 4 divisors (see below), whose sum is σ = 32006397264. Its totient is φ = 31996243200.

The previous prime is 32001320111. The next prime is 32001320261. The reversal of 32001320231 is 13202310023.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32001320231 is a prime.

It is a super-2 number, since 2×32001320231² (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 (32001320261) 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, 2529050 + ... + 2541671.

It is an arithmetic number, because the mean of its divisors is an integer number (8001599316).

Almost surely, 2^32001320231 is an apocalyptic number.

32001320231 is a deficient number, since it is larger than the sum of its proper divisors (5077033).

32001320231 is an equidigital number, since it uses as much as digits as its factorization.

32001320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5077032.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 32001320231 its reverse (13202310023), we get a palindrome (45203630254).

The spelling of 32001320231 in words is "thirty-two billion, one million, three hundred twenty thousand, two hundred thirty-one".