2144401121003 has 4 divisors (see below), whose sum is σ = 2144771425728. Its totient is φ = 2144030816280.

The previous prime is 2144401120993. The next prime is 2144401121029. The reversal of 2144401121003 is 3001211044412.

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 2144401121003 - 2⁸ = 2144401120747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144401121003.

It is not an unprimeable number, because it can be changed into a prime (2144401124003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185143676 + ... + 185155257.

It is an arithmetic number, because the mean of its divisors is an integer number (536192856432).

Almost surely, 2^{2144401121003} is an apocalyptic number.

2144401121003 is a deficient number, since it is larger than the sum of its proper divisors (370304725).

2144401121003 is an equidigital number, since it uses as much as digits as its factorization.

2144401121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370304724.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2144401121003 its reverse (3001211044412), we get a palindrome (5145612165415).

The spelling of 2144401121003 in words is "two trillion, one hundred forty-four billion, four hundred one million, one hundred twenty-one thousand, three".