230121210 has 64 divisors (see below), whose sum is σ = 628715520. Its totient is φ = 53359680.

The previous prime is 230121209. The next prime is 230121211. The reversal of 230121210 is 12121032.

It is an interprime number because it is at equal distance from previous prime (230121209) and next prime (230121211).

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 (230121211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7570 + ... + 22749.

It is an arithmetic number, because the mean of its divisors is an integer number (9823680).

Almost surely, 2^230121210 is an apocalyptic number.

230121210 is an abundant number, since it is smaller than the sum of its proper divisors (398594310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230121210 is a wasteful number, since it uses less digits than its factorization.

230121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30363.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 230121210 is about 15169.7465371047. The cubic root of 230121210 is about 612.8001782825.

Adding to 230121210 its reverse (12121032), we get a palindrome (242242242).

The spelling of 230121210 in words is "two hundred thirty million, one hundred twenty-one thousand, two hundred ten".