2144303021 has 16 divisors (see below), whose sum is σ = 2527303680. Its totient is φ = 1781349360.

The previous prime is 2144303009. The next prime is 2144303081. The reversal of 2144303021 is 1203034412.

It is not a de Polignac number, because 2144303021 - 2⁶ = 2144302957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2144302984 and 2144303002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144303081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7241 + ... + 65886.

It is an arithmetic number, because the mean of its divisors is an integer number (157956480).

Almost surely, 2^2144303021 is an apocalyptic number.

It is an amenable number.

2144303021 is a deficient number, since it is larger than the sum of its proper divisors (383000659).

2144303021 is an equidigital number, since it uses as much as digits as its factorization.

2144303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73264.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2144303021 is about 46306.6196239803. The cubic root of 2144303021 is about 1289.5218910067.

Adding to 2144303021 its reverse (1203034412), we get a palindrome (3347337433).

The spelling of 2144303021 in words is "two billion, one hundred forty-four million, three hundred three thousand, twenty-one".