331130233201321 has 4 divisors (see below), whose sum is σ = 345527199862272. Its totient is φ = 316733266540372.

The previous prime is 331130233201279. The next prime is 331130233201393. The reversal of 331130233201321 is 123102332031133.

It is a happy number.

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 331130233201321 - 2⁷ = 331130233201193 is a prime.

It is a super-2 number, since 2×331130233201321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331130233201321.

It is not an unprimeable number, because it can be changed into a prime (331130233231321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7198483330441 + ... + 7198483330486.

It is an arithmetic number, because the mean of its divisors is an integer number (86381799965568).

Almost surely, 2^{331130233201321} is an apocalyptic number.

It is an amenable number.

331130233201321 is a deficient number, since it is larger than the sum of its proper divisors (14396966660951).

331130233201321 is a wasteful number, since it uses less digits than its factorization.

331130233201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14396966660950.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 331130233201321 its reverse (123102332031133), we get a palindrome (454232565232454).

The spelling of 331130233201321 in words is "three hundred thirty-one trillion, one hundred thirty billion, two hundred thirty-three million, two hundred one thousand, three hundred twenty-one".