1144203313 has 32 divisors (see below), whose sum is σ = 1341360000. Its totient is φ = 965099520.

The previous prime is 1144203311. The next prime is 1144203317. The reversal of 1144203313 is 3133024411.

It is not a de Polignac number, because 1144203313 - 2¹ = 1144203311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144203311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2548113 + ... + 2548561.

It is an arithmetic number, because the mean of its divisors is an integer number (41917500).

Almost surely, 2^1144203313 is an apocalyptic number.

It is an amenable number.

1144203313 is a deficient number, since it is larger than the sum of its proper divisors (197156687).

1144203313 is a wasteful number, since it uses less digits than its factorization.

1144203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1144203313 is about 33826.0744544796. The cubic root of 1144203313 is about 1045.9262600849.

Adding to 1144203313 its reverse (3133024411), we get a palindrome (4277227724).

The spelling of 1144203313 in words is "one billion, one hundred forty-four million, two hundred three thousand, three hundred thirteen".