331201022113331 has 4 divisors (see below), whose sum is σ = 333729274190664. Its totient is φ = 328672770036000.

The previous prime is 331201022113319. The next prime is 331201022113349. The reversal of 331201022113331 is 133311220102133.

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 331201022113331 - 2³⁰ = 331199948371507 is a prime.

It is a super-2 number, since 2×331201022113331² (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 331201022113331.

It is not an unprimeable number, because it can be changed into a prime (331201022113231) 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, 1264126038470 + ... + 1264126038731.

It is an arithmetic number, because the mean of its divisors is an integer number (83432318547666).

Almost surely, 2^{331201022113331} is an apocalyptic number.

331201022113331 is a deficient number, since it is larger than the sum of its proper divisors (2528252077333).

331201022113331 is a wasteful number, since it uses less digits than its factorization.

331201022113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528252077332.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 331201022113331 its reverse (133311220102133), we get a palindrome (464512242215464).

The spelling of 331201022113331 in words is "three hundred thirty-one trillion, two hundred one billion, twenty-two million, one hundred thirteen thousand, three hundred thirty-one".