230521210 has 32 divisors (see below), whose sum is σ = 424419840. Its totient is φ = 90125568.

The previous prime is 230521199. The next prime is 230521217. The reversal of 230521210 is 12125032.

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

It is not an unprimeable number, because it can be changed into a prime (230521217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79954 + ... + 82786.

It is an arithmetic number, because the mean of its divisors is an integer number (13263120).

Almost surely, 2^230521210 is an apocalyptic number.

230521210 is a deficient number, since it is larger than the sum of its proper divisors (193898630).

230521210 is a wasteful number, since it uses less digits than its factorization.

230521210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022.

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

The square root of 230521210 is about 15182.9249487706. The cubic root of 230521210 is about 613.1550321217.

Adding to 230521210 its reverse (12125032), we get a palindrome (242646242).

The spelling of 230521210 in words is "two hundred thirty million, five hundred twenty-one thousand, two hundred ten".