121200114040203 has 288 divisors, whose sum is σ = 197483626368000. Its totient is φ = 65931894673920.

The previous prime is 121200114040199. The next prime is 121200114040253. The reversal of 121200114040203 is 302040411002121.

It is not a de Polignac number, because 121200114040203 - 2² = 121200114040199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121200114040203.

It is not an unprimeable number, because it can be changed into a prime (121200114040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 238114172713 + ... + 238114173221.

It is an arithmetic number, because the mean of its divisors is an integer number (685707036000).

Almost surely, 2^{121200114040203} is an apocalyptic number.

121200114040203 is a deficient number, since it is larger than the sum of its proper divisors (76283512327797).

121200114040203 is a wasteful number, since it uses less digits than its factorization.

121200114040203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121200114040203 its reverse (302040411002121), we get a palindrome (423240525042324).

The spelling of 121200114040203 in words is "one hundred twenty-one trillion, two hundred billion, one hundred fourteen million, forty thousand, two hundred three".