121331330 has 16 divisors (see below), whose sum is σ = 219435264. Its totient is φ = 48301680.

The previous prime is 121331269. The next prime is 121331333. The reversal of 121331330 is 33133121.

It is a junction number, because it is equal to n+sod(n) for n = 121331299 and 121331308.

It is not an unprimeable number, because it can be changed into a prime (121331333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26642 + ... + 30861.

It is an arithmetic number, because the mean of its divisors is an integer number (13714704).

Almost surely, 2^121331330 is an apocalyptic number.

121331330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121331330 is a deficient number, since it is larger than the sum of its proper divisors (98103934).

121331330 is a wasteful number, since it uses less digits than its factorization.

121331330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57721.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 121331330 is about 11015.0501587601. The cubic root of 121331330 is about 495.0597893973.

Adding to 121331330 its reverse (33133121), we get a palindrome (154464451).

The spelling of 121331330 in words is "one hundred twenty-one million, three hundred thirty-one thousand, three hundred thirty".