121143203 has 8 divisors (see below), whose sum is σ = 122623872. Its totient is φ = 119667456.

The previous prime is 121143193. The next prime is 121143227. The reversal of 121143203 is 302341121.

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

It is a cyclic number.

It is not a de Polignac number, because 121143203 - 2¹⁰ = 121142179 is a prime.

It is a super-3 number, since 3×121143203³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121143263) 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 7 ways as a sum of consecutive naturals, for example, 76526 + ... + 78092.

It is an arithmetic number, because the mean of its divisors is an integer number (15327984).

Almost surely, 2^121143203 is an apocalyptic number.

121143203 is a deficient number, since it is larger than the sum of its proper divisors (1480669).

121143203 is an equidigital number, since it uses as much as digits as its factorization.

121143203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121143203 is about 11006.5073025006. The cubic root of 121143203 is about 494.8037898683.

Adding to 121143203 its reverse (302341121), we get a palindrome (423484324).

The spelling of 121143203 in words is "one hundred twenty-one million, one hundred forty-three thousand, two hundred three".