331220330211233 has 4 divisors (see below), whose sum is σ = 333443285447700. Its totient is φ = 328997374974768.

The previous prime is 331220330211229. The next prime is 331220330211263. The reversal of 331220330211233 is 332112033022133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143364989614144 + 187855340597089 = 11973512^2 + 13706033^2 .

It is a cyclic number.

It is not a de Polignac number, because 331220330211233 - 2² = 331220330211229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331220330211196 and 331220330211205.

It is not an unprimeable number, because it can be changed into a prime (331220330211263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1111477618010 + ... + 1111477618307.

It is an arithmetic number, because the mean of its divisors is an integer number (83360821361925).

Almost surely, 2^{331220330211233} is an apocalyptic number.

It is an amenable number.

331220330211233 is a deficient number, since it is larger than the sum of its proper divisors (2222955236467).

331220330211233 is a wasteful number, since it uses less digits than its factorization.

331220330211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222955236466.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 331220330211233 its reverse (332112033022133), we get a palindrome (663332363233366).

The spelling of 331220330211233 in words is "three hundred thirty-one trillion, two hundred twenty billion, three hundred thirty million, two hundred eleven thousand, two hundred thirty-three".