2144020313 has 4 divisors (see below), whose sum is σ = 2156413668. Its totient is φ = 2131626960.

The previous prime is 2144020309. The next prime is 2144020369. The reversal of 2144020313 is 3130204412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1622720089 + 521300224 = 40283^2 + 22832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2144020313 - 2² = 2144020309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144020013) 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, 6196418 + ... + 6196763.

It is an arithmetic number, because the mean of its divisors is an integer number (539103417).

Almost surely, 2^2144020313 is an apocalyptic number.

It is an amenable number.

2144020313 is a deficient number, since it is larger than the sum of its proper divisors (12393355).

2144020313 is a wasteful number, since it uses less digits than its factorization.

2144020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12393354.

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

The square root of 2144020313 is about 46303.5669576330. The cubic root of 2144020313 is about 1289.4652177080.

Adding to 2144020313 its reverse (3130204412), we get a palindrome (5274224725).

The spelling of 2144020313 in words is "two billion, one hundred forty-four million, twenty thousand, three hundred thirteen".