121342430 has 72 divisors (see below), whose sum is σ = 255765384. Its totient is φ = 41409280.

The previous prime is 121342421. The next prime is 121342483. The reversal of 121342430 is 34243121.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 349517 + ... + 349863.

It is an arithmetic number, because the mean of its divisors is an integer number (3552297).

Almost surely, 2^121342430 is an apocalyptic number.

121342430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121342430 is an abundant number, since it is smaller than the sum of its proper divisors (134422954).

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

121342430 is a wasteful number, since it uses less digits than its factorization.

121342430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 121342430 is about 11015.5540033173. The cubic root of 121342430 is about 495.0748857897.

Adding to 121342430 its reverse (34243121), we get a palindrome (155585551).

The spelling of 121342430 in words is "one hundred twenty-one million, three hundred forty-two thousand, four hundred thirty".