121101230203 has 4 divisors (see below), whose sum is σ = 121801237488. Its totient is φ = 120401222920.

The previous prime is 121101230191. The next prime is 121101230213. The reversal of 121101230203 is 302032101121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302032101121 = 457 ⋅660901753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101230203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101230213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350003383 + ... + 350003728.

It is an arithmetic number, because the mean of its divisors is an integer number (30450309372).

Almost surely, 2^121101230203 is an apocalyptic number.

121101230203 is a deficient number, since it is larger than the sum of its proper divisors (700007285).

121101230203 is an equidigital number, since it uses as much as digits as its factorization.

121101230203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700007284.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121101230203 its reverse (302032101121), we get a palindrome (423133331324).

The spelling of 121101230203 in words is "one hundred twenty-one billion, one hundred one million, two hundred thirty thousand, two hundred three".