2001223110103 has 4 divisors (see below), whose sum is σ = 2287112125840. Its totient is φ = 1715334094368.

The previous prime is 2001223110101. The next prime is 2001223110149. The reversal of 2001223110103 is 3010113221002.

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

It is a cyclic number.

It is not a de Polignac number, because 2001223110103 - 2¹ = 2001223110101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001223110101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142944507858 + ... + 142944507871.

It is an arithmetic number, because the mean of its divisors is an integer number (571778031460).

Almost surely, 2^{2001223110103} is an apocalyptic number.

2001223110103 is a deficient number, since it is larger than the sum of its proper divisors (285889015737).

2001223110103 is an equidigital number, since it uses as much as digits as its factorization.

2001223110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285889015736.

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

Adding to 2001223110103 its reverse (3010113221002), we get a palindrome (5011336331105).

The spelling of 2001223110103 in words is "two trillion, one billion, two hundred twenty-three million, one hundred ten thousand, one hundred three".