121330230 has 64 divisors (see below), whose sum is σ = 336849408. Its totient is φ = 27394560.

The previous prime is 121330217. The next prime is 121330277. The reversal of 121330230 is 32033121.

121330230 = 5506² + 5507² + ... + 5509².

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13950 + ... + 20910.

It is an arithmetic number, because the mean of its divisors is an integer number (5263272).

Almost surely, 2^121330230 is an apocalyptic number.

121330230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121330230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168424704).

121330230 is an abundant number, since it is smaller than the sum of its proper divisors (215519178).

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

121330230 is a wasteful number, since it uses less digits than its factorization.

121330230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 121330230 is about 11015.0002269632. Note that the first 3 decimals coincide. The cubic root of 121330230 is about 495.0582933083.

Adding to 121330230 its reverse (32033121), we get a palindrome (153363351).

The spelling of 121330230 in words is "one hundred twenty-one million, three hundred thirty thousand, two hundred thirty".