230321393 has 4 divisors (see below), whose sum is σ = 238263540. Its totient is φ = 222379248.

The previous prime is 230321387. The next prime is 230321407. The reversal of 230321393 is 393123032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 74770609 + 155550784 = 8647^2 + 12472^2 .

It is a cyclic number.

It is not a de Polignac number, because 230321393 - 2²⁰ = 229272817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230321353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971030 + ... + 3971087.

It is an arithmetic number, because the mean of its divisors is an integer number (59565885).

Almost surely, 2^230321393 is an apocalyptic number.

It is an amenable number.

230321393 is a deficient number, since it is larger than the sum of its proper divisors (7942147).

230321393 is an equidigital number, since it uses as much as digits as its factorization.

230321393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7942146.

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 230321393 is about 15176.3432024978. The cubic root of 230321393 is about 612.9778189040.

The spelling of 230321393 in words is "two hundred thirty million, three hundred twenty-one thousand, three hundred ninety-three".