331323001 has 4 divisors (see below), whose sum is σ = 331360000. Its totient is φ = 331286004.

The previous prime is 331322989. The next prime is 331323023. The reversal of 331323001 is 100323133.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 331323001 - 2²¹ = 329225849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331323101) 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, 4300 + ... + 26098.

It is an arithmetic number, because the mean of its divisors is an integer number (82840000).

Almost surely, 2^331323001 is an apocalyptic number.

It is an amenable number.

331323001 is a deficient number, since it is larger than the sum of its proper divisors (36999).

331323001 is a wasteful number, since it uses less digits than its factorization.

331323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36998.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 331323001 is about 18202.2801044265. The cubic root of 331323001 is about 691.9645761601.

Adding to 331323001 its reverse (100323133), we get a palindrome (431646134).

The spelling of 331323001 in words is "three hundred thirty-one million, three hundred twenty-three thousand, one".