230521012 has 12 divisors (see below), whose sum is σ = 403518276. Its totient is φ = 115230080.

The previous prime is 230520967. The next prime is 230521021. The reversal of 230521012 is 210125032.

It can be written as a sum of positive squares in 2 ways, for example, as 41293476 + 189227536 = 6426^2 + 13756^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

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, 24438 + ... + 32530.

It is an arithmetic number, because the mean of its divisors is an integer number (33626523).

Almost surely, 2^230521012 is an apocalyptic number.

It is an amenable number.

230521012 is a deficient number, since it is larger than the sum of its proper divisors (172997264).

230521012 is a wasteful number, since it uses less digits than its factorization.

230521012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15218 (or 15216 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 230521012 is about 15182.9184282864. The cubic root of 230521012 is about 613.1548565706.

Adding to 230521012 its reverse (210125032), we get a palindrome (440646044).

The spelling of 230521012 in words is "two hundred thirty million, five hundred twenty-one thousand, twelve".