331320133331 has 8 divisors (see below), whose sum is σ = 361530530928. Its totient is φ = 301124800000.

The previous prime is 331320133279. The next prime is 331320133349. The reversal of 331320133331 is 133331023133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331320133331 - 2¹⁸ = 331319871187 is a prime.

It is a super-2 number, since 2×331320133331² (a number of 24 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 331320133331.

It is not an unprimeable number, because it can be changed into a prime (331320133351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3720050 + ... + 3808071.

It is an arithmetic number, because the mean of its divisors is an integer number (45191316366).

Almost surely, 2^331320133331 is an apocalyptic number.

331320133331 is a deficient number, since it is larger than the sum of its proper divisors (30210397597).

331320133331 is a wasteful number, since it uses less digits than its factorization.

331320133331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7532133.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 331320133331 its reverse (133331023133), we get a palindrome (464651156464).

The spelling of 331320133331 in words is "three hundred thirty-one billion, three hundred twenty million, one hundred thirty-three thousand, three hundred thirty-one".