121144203 has 12 divisors (see below), whose sum is σ = 175095648. Its totient is φ = 80712240.

The previous prime is 121144189. The next prime is 121144207. The reversal of 121144203 is 302441121.

It is not a de Polignac number, because 121144203 - 2⁶ = 121144139 is a prime.

It is a super-3 number, since 3×121144203³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121144207) 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 11 ways as a sum of consecutive naturals, for example, 16126 + ... + 22412.

It is an arithmetic number, because the mean of its divisors is an integer number (14591304).

Almost surely, 2^121144203 is an apocalyptic number.

121144203 is a deficient number, since it is larger than the sum of its proper divisors (53951445).

121144203 is a wasteful number, since it uses less digits than its factorization.

121144203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434 (or 8431 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121144203 is about 11006.5527300786. The cubic root of 121144203 is about 494.8051513490.

Adding to 121144203 its reverse (302441121), we get a palindrome (423585324).

The spelling of 121144203 in words is "one hundred twenty-one million, one hundred forty-four thousand, two hundred three".