121343530 has 64 divisors (see below), whose sum is σ = 277032960. Its totient is φ = 37166400.

The previous prime is 121343513. The next prime is 121343533. The reversal of 121343530 is 35343121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (121343533) 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, 44095 + ... + 46765.

It is an arithmetic number, because the mean of its divisors is an integer number (4328640).

Almost surely, 2^121343530 is an apocalyptic number.

121343530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121343530 is an abundant number, since it is smaller than the sum of its proper divisors (155689430).

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

121343530 is a wasteful number, since it uses less digits than its factorization.

121343530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 121343530 is about 11015.6039326040. The cubic root of 121343530 is about 495.0763817785.

Adding to 121343530 its reverse (35343121), we get a palindrome (156686651).

The spelling of 121343530 in words is "one hundred twenty-one million, three hundred forty-three thousand, five hundred thirty".