131333032321 has 4 divisors (see below), whose sum is σ = 138245297200. Its totient is φ = 124420767444.

The previous prime is 131333032247. The next prime is 131333032351. The reversal of 131333032321 is 123230333131.

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 131333032321 - 2²⁵ = 131299477889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131333032351) 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, 3456132411 + ... + 3456132448.

It is an arithmetic number, because the mean of its divisors is an integer number (34561324300).

Almost surely, 2^131333032321 is an apocalyptic number.

It is an amenable number.

131333032321 is a deficient number, since it is larger than the sum of its proper divisors (6912264879).

131333032321 is an equidigital number, since it uses as much as digits as its factorization.

131333032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6912264878.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 131333032321 its reverse (123230333131), we get a palindrome (254563365452).

The spelling of 131333032321 in words is "one hundred thirty-one billion, three hundred thirty-three million, thirty-two thousand, three hundred twenty-one".