1144313321 has 4 divisors (see below), whose sum is σ = 1172223444. Its totient is φ = 1116403200.

The previous prime is 1144313311. The next prime is 1144313327. The reversal of 1144313321 is 1233134411.

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 89038096 + 1055275225 = 9436^2 + 32485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144313321 - 2²² = 1140119017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144313327) 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, 13955000 + ... + 13955081.

It is an arithmetic number, because the mean of its divisors is an integer number (293055861).

Almost surely, 2^1144313321 is an apocalyptic number.

It is an amenable number.

1144313321 is a deficient number, since it is larger than the sum of its proper divisors (27910123).

1144313321 is an equidigital number, since it uses as much as digits as its factorization.

1144313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27910122.

The product of its digits is 864, while the sum is 23.

The square root of 1144313321 is about 33827.7004982603. The cubic root of 1144313321 is about 1045.9597787692.

Adding to 1144313321 its reverse (1233134411), we get a palindrome (2377447732).

The spelling of 1144313321 in words is "one billion, one hundred forty-four million, three hundred thirteen thousand, three hundred twenty-one".