2121101322003 has 24 divisors (see below), whose sum is σ = 3141224040240. Its totient is φ = 1378468607040.

The previous prime is 2121101322001. The next prime is 2121101322019. The reversal of 2121101322003 is 3002231011212.

It is not a de Polignac number, because 2121101322003 - 2¹ = 2121101322001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121101322001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5186988 + ... + 5580953.

It is an arithmetic number, because the mean of its divisors is an integer number (130884335010).

Almost surely, 2^{2121101322003} is an apocalyptic number.

2121101322003 is a deficient number, since it is larger than the sum of its proper divisors (1020122718237).

2121101322003 is a wasteful number, since it uses less digits than its factorization.

2121101322003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768499 (or 10768496 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2121101322003 its reverse (3002231011212), we get a palindrome (5123332333215).

The spelling of 2121101322003 in words is "two trillion, one hundred twenty-one billion, one hundred one million, three hundred twenty-two thousand, three".