121836430 has 8 divisors (see below), whose sum is σ = 219305592. Its totient is φ = 48734568.

The previous prime is 121836413. The next prime is 121836431. The reversal of 121836430 is 34638121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121836431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6091812 + ... + 6091831.

It is an arithmetic number, because the mean of its divisors is an integer number (27413199).

Almost surely, 2^121836430 is an apocalyptic number.

121836430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121836430 is a deficient number, since it is larger than the sum of its proper divisors (97469162).

121836430 is a wasteful number, since it uses less digits than its factorization.

121836430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183650.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 121836430 is about 11037.9540676703. The cubic root of 121836430 is about 495.7458131115.

The spelling of 121836430 in words is "one hundred twenty-one million, eight hundred thirty-six thousand, four hundred thirty".