1144021313 has 8 divisors (see below), whose sum is σ = 1169544960. Its totient is φ = 1118547040.

The previous prime is 1144021187. The next prime is 1144021327. The reversal of 1144021313 is 3131204411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144021313 - 2¹⁴ = 1144004929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144021343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36653 + ... + 60261.

It is an arithmetic number, because the mean of its divisors is an integer number (146193120).

Almost surely, 2^1144021313 is an apocalyptic number.

It is an amenable number.

1144021313 is a deficient number, since it is larger than the sum of its proper divisors (25523647).

1144021313 is a wasteful number, since it uses less digits than its factorization.

1144021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24687.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1144021313 is about 33823.3841151355. The cubic root of 1144021313 is about 1045.8708012135.

Adding to 1144021313 its reverse (3131204411), we get a palindrome (4275225724).

The spelling of 1144021313 in words is "one billion, one hundred forty-four million, twenty-one thousand, three hundred thirteen".