121343199 has 8 divisors (see below), whose sum is σ = 161982720. Its totient is φ = 80799576.

The previous prime is 121343191. The next prime is 121343227. The reversal of 121343199 is 991343121.

It is a happy number.

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

It is not a de Polignac number, because 121343199 - 2³ = 121343191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121343191) 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, 20967 + ... + 26120.

It is an arithmetic number, because the mean of its divisors is an integer number (20247840).

Almost surely, 2^121343199 is an apocalyptic number.

121343199 is a deficient number, since it is larger than the sum of its proper divisors (40639521).

121343199 is an equidigital number, since it uses as much as digits as its factorization.

121343199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47949.

The product of its digits is 5832, while the sum is 33.

The square root of 121343199 is about 11015.5889084515. The cubic root of 121343199 is about 495.0759316228.

The spelling of 121343199 in words is "one hundred twenty-one million, three hundred forty-three thousand, one hundred ninety-nine".