230620321 has 16 divisors (see below), whose sum is σ = 240609600. Its totient is φ = 220910400.

The previous prime is 230620307. The next prime is 230620343. The reversal of 230620321 is 123026032.

230620321 = 1948² + 1949² + ... + 2006².

It is a cyclic number.

It is not a de Polignac number, because 230620321 - 2¹⁹ = 230096033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230620301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500031 + ... + 500491.

It is an arithmetic number, because the mean of its divisors is an integer number (15038100).

Almost surely, 2^230620321 is an apocalyptic number.

It is an amenable number.

230620321 is a deficient number, since it is larger than the sum of its proper divisors (9989279).

230620321 is a wasteful number, since it uses less digits than its factorization.

230620321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 230620321 is about 15186.1884948133. The cubic root of 230620321 is about 613.2428934530.

Adding to 230620321 its reverse (123026032), we get a palindrome (353646353).

The spelling of 230620321 in words is "two hundred thirty million, six hundred twenty thousand, three hundred twenty-one".