121000102203 has 4 divisors (see below), whose sum is σ = 161333469608. Its totient is φ = 80666734800.

The previous prime is 121000102199. The next prime is 121000102211. The reversal of 121000102203 is 302201000121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121000102203 - 2² = 121000102199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000102243) 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, 20166683698 + ... + 20166683703.

It is an arithmetic number, because the mean of its divisors is an integer number (40333367402).

Almost surely, 2^121000102203 is an apocalyptic number.

121000102203 is a deficient number, since it is larger than the sum of its proper divisors (40333367405).

121000102203 is an equidigital number, since it uses as much as digits as its factorization.

121000102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40333367404.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121000102203 its reverse (302201000121), we get a palindrome (423201102324).

The spelling of 121000102203 in words is "one hundred twenty-one billion, one hundred two thousand, two hundred three".