121402330 has 64 divisors (see below), whose sum is σ = 260713728. Its totient is φ = 39836160.

The previous prime is 121402301. The next prime is 121402331. The reversal of 121402330 is 33204121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121402331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159150 + ... + 159910.

It is an arithmetic number, because the mean of its divisors is an integer number (4073652).

Almost surely, 2^121402330 is an apocalyptic number.

121402330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121402330 is an abundant number, since it is smaller than the sum of its proper divisors (139311398).

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

121402330 is a wasteful number, since it uses less digits than its factorization.

121402330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 121402330 is about 11018.2725506315. The cubic root of 121402330 is about 495.1563360220.

Adding to 121402330 its reverse (33204121), we get a palindrome (154606451).

The spelling of 121402330 in words is "one hundred twenty-one million, four hundred two thousand, three hundred thirty".