230532813 has 24 divisors (see below), whose sum is σ = 383571968. Its totient is φ = 130691232.

The previous prime is 230532779. The next prime is 230532817. The reversal of 230532813 is 318235032.

It is not a de Polignac number, because 230532813 - 2⁸ = 230532557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230532817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6406 + ... + 22407.

Almost surely, 2^230532813 is an apocalyptic number.

It is an amenable number.

230532813 is a deficient number, since it is larger than the sum of its proper divisors (153039155).

230532813 is a wasteful number, since it uses less digits than its factorization.

230532813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28953 (or 28950 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 230532813 is about 15183.3070508371. The cubic root of 230532813 is about 613.1653194158.

Adding to 230532813 its reverse (318235032), we get a palindrome (548767845).

The spelling of 230532813 in words is "two hundred thirty million, five hundred thirty-two thousand, eight hundred thirteen".