331201111323 has 16 divisors (see below), whose sum is σ = 452381293440. Its totient is φ = 215472434496.

The previous prime is 331201111277. The next prime is 331201111363. The reversal of 331201111323 is 323111102133.

It is a happy number.

It is not a de Polignac number, because 331201111323 - 2²² = 331196917019 is a prime.

It is a super-2 number, since 2×331201111323² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 331201111323.

It is not an unprimeable number, because it can be changed into a prime (331201111363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7678338 + ... + 7721351.

It is an arithmetic number, because the mean of its divisors is an integer number (28273830840).

Almost surely, 2^331201111323 is an apocalyptic number.

331201111323 is a deficient number, since it is larger than the sum of its proper divisors (121180182117).

331201111323 is a wasteful number, since it uses less digits than its factorization.

331201111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15399866.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 331201111323 its reverse (323111102133), we get a palindrome (654312213456).

The spelling of 331201111323 in words is "three hundred thirty-one billion, two hundred one million, one hundred eleven thousand, three hundred twenty-three".