32320401331 has 4 divisors (see below), whose sum is σ = 32323924000. Its totient is φ = 32316878664.

The previous prime is 32320401319. The next prime is 32320401359. The reversal of 32320401331 is 13310402323.

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

It is a cyclic number.

It is not a de Polignac number, because 32320401331 - 2⁵ = 32320401299 is a prime.

It is a super-2 number, since 2×32320401331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32320401031) 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, 1747536 + ... + 1765933.

It is an arithmetic number, because the mean of its divisors is an integer number (8080981000).

Almost surely, 2^32320401331 is an apocalyptic number.

32320401331 is a deficient number, since it is larger than the sum of its proper divisors (3522669).

32320401331 is an equidigital number, since it uses as much as digits as its factorization.

32320401331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522668.

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

Adding to 32320401331 its reverse (13310402323), we get a palindrome (45630803654).

The spelling of 32320401331 in words is "thirty-two billion, three hundred twenty million, four hundred one thousand, three hundred thirty-one".