121230330 has 64 divisors (see below), whose sum is σ = 320664960. Its totient is φ = 29143296.

The previous prime is 121230323. The next prime is 121230337. The reversal of 121230330 is 33032121.

It is an interprime number because it is at equal distance from previous prime (121230323) and next prime (121230337).

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

It is not an unprimeable number, because it can be changed into a prime (121230337) 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, 13156 + ... + 20384.

It is an arithmetic number, because the mean of its divisors is an integer number (5010390).

Almost surely, 2^121230330 is an apocalyptic number.

121230330 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 121230330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160332480).

121230330 is an abundant number, since it is smaller than the sum of its proper divisors (199434630).

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

121230330 is a wasteful number, since it uses less digits than its factorization.

121230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295.

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

The square root of 121230330 is about 11010.4645678554. The cubic root of 121230330 is about 494.9223835042.

Adding to 121230330 its reverse (33032121), we get a palindrome (154262451).

The spelling of 121230330 in words is "one hundred twenty-one million, two hundred thirty thousand, three hundred thirty".