2121103032203 has 4 divisors (see below), whose sum is σ = 2166232884000. Its totient is φ = 2075973180408.

The previous prime is 2121103032179. The next prime is 2121103032211. The reversal of 2121103032203 is 3022303011212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121103032203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121103032253) 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 3 ways as a sum of consecutive naturals, for example, 22564925828 + ... + 22564925921.

It is an arithmetic number, because the mean of its divisors is an integer number (541558221000).

Almost surely, 2^{2121103032203} is an apocalyptic number.

2121103032203 is a deficient number, since it is larger than the sum of its proper divisors (45129851797).

2121103032203 is an equidigital number, since it uses as much as digits as its factorization.

2121103032203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45129851796.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2121103032203 its reverse (3022303011212), we get a palindrome (5143406043415).

The spelling of 2121103032203 in words is "two trillion, one hundred twenty-one billion, one hundred three million, thirty-two thousand, two hundred three".