331320212323 has 4 divisors (see below), whose sum is σ = 331373511160. Its totient is φ = 331266913488.

The previous prime is 331320212299. The next prime is 331320212339. The reversal of 331320212323 is 323212023133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331320212323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331320212023) 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, 26640093 + ... + 26652526.

It is an arithmetic number, because the mean of its divisors is an integer number (82843377790).

Almost surely, 2^331320212323 is an apocalyptic number.

331320212323 is a deficient number, since it is larger than the sum of its proper divisors (53298837).

331320212323 is an equidigital number, since it uses as much as digits as its factorization.

331320212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53298836.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 331320212323 its reverse (323212023133), we get a palindrome (654532235456).

The spelling of 331320212323 in words is "three hundred thirty-one billion, three hundred twenty million, two hundred twelve thousand, three hundred twenty-three".