331121323333 has 4 divisors (see below), whose sum is σ = 338166457920. Its totient is φ = 324076188748.

The previous prime is 331121323319. The next prime is 331121323363. The reversal of 331121323333 is 333323121133.

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 a de Polignac number, because none of the positive numbers 2^k-331121323333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331121323363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522567223 + ... + 3522567316.

It is an arithmetic number, because the mean of its divisors is an integer number (84541614480).

Almost surely, 2^331121323333 is an apocalyptic number.

It is an amenable number.

331121323333 is a deficient number, since it is larger than the sum of its proper divisors (7045134587).

331121323333 is an equidigital number, since it uses as much as digits as its factorization.

331121323333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045134586.

The product of its digits is 8748, while the sum is 28.

Adding to 331121323333 its reverse (333323121133), we get a palindrome (664444444466).

The spelling of 331121323333 in words is "three hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred thirty-three".