121233312203 has 4 divisors (see below), whose sum is σ = 121234132800. Its totient is φ = 121232491608.

The previous prime is 121233312181. The next prime is 121233312223. The reversal of 121233312203 is 302213332121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 302213332121 = 41 ⋅7371056881.

It is a cyclic number.

It is not a de Polignac number, because 121233312203 - 2¹² = 121233308107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121233312223) 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 3 ways as a sum of consecutive naturals, for example, 120428 + ... + 506921.

It is an arithmetic number, because the mean of its divisors is an integer number (30308533200).

Almost surely, 2^121233312203 is an apocalyptic number.

121233312203 is a deficient number, since it is larger than the sum of its proper divisors (820597).

121233312203 is an equidigital number, since it uses as much as digits as its factorization.

121233312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820596.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121233312203 its reverse (302213332121), we get a palindrome (423446644324).

The spelling of 121233312203 in words is "one hundred twenty-one billion, two hundred thirty-three million, three hundred twelve thousand, two hundred three".