331121323 has 8 divisors (see below), whose sum is σ = 368095616. Its totient is φ = 295790400.

The previous prime is 331121299. The next prime is 331121347. The reversal of 331121323 is 323121133.

It is an interprime number because it is at equal distance from previous prime (331121299) and next prime (331121347).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331121323 is a prime.

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 331121323.

It is not an unprimeable number, because it can be changed into a prime (331121383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410418 + ... + 411223.

It is an arithmetic number, because the mean of its divisors is an integer number (46011952).

Almost surely, 2^331121323 is an apocalyptic number.

331121323 is a deficient number, since it is larger than the sum of its proper divisors (36974293).

331121323 is a wasteful number, since it uses less digits than its factorization.

331121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821685.

The product of its digits is 324, while the sum is 19.

The square root of 331121323 is about 18196.7393507738. The cubic root of 331121323 is about 691.8241468744.

Adding to 331121323 its reverse (323121133), we get a palindrome (654242456).

The spelling of 331121323 in words is "three hundred thirty-one million, one hundred twenty-one thousand, three hundred twenty-three".