230306623 has 4 divisors (see below), whose sum is σ = 230391648. Its totient is φ = 230221600.

The previous prime is 230306621. The next prime is 230306639. The reversal of 230306623 is 326603032.

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

It is a cyclic number.

It is not a de Polignac number, because 230306623 - 2¹ = 230306621 is a prime.

It is a super-2 number, since 2×230306623² = 106082281195328258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230306621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38311 + ... + 43912.

It is an arithmetic number, because the mean of its divisors is an integer number (57597912).

Almost surely, 2^230306623 is an apocalyptic number.

230306623 is a deficient number, since it is larger than the sum of its proper divisors (85025).

230306623 is an equidigital number, since it uses as much as digits as its factorization.

230306623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85024.

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

The square root of 230306623 is about 15175.8565820846. The cubic root of 230306623 is about 612.9647156547.

Adding to 230306623 its reverse (326603032), we get a palindrome (556909655).

The spelling of 230306623 in words is "two hundred thirty million, three hundred six thousand, six hundred twenty-three".