331423093 has 2 divisors, whose sum is σ = 331423094. Its totient is φ = 331423092.

The previous prime is 331423069. The next prime is 331423159. The reversal of 331423093 is 390324133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296459524 + 34963569 = 17218^2 + 5913^2 .

It is a cyclic number.

It is not a de Polignac number, because 331423093 - 2¹³ = 331414901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331423003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165711546 + 165711547.

It is an arithmetic number, because the mean of its divisors is an integer number (165711547).

Almost surely, 2^331423093 is an apocalyptic number.

It is an amenable number.

331423093 is a deficient number, since it is larger than the sum of its proper divisors (1).

331423093 is an equidigital number, since it uses as much as digits as its factorization.

331423093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 331423093 is about 18205.0293325773. The cubic root of 331423093 is about 692.0342495049.

The spelling of 331423093 in words is "three hundred thirty-one million, four hundred twenty-three thousand, ninety-three".