1144312271 has 2 divisors, whose sum is σ = 1144312272. Its totient is φ = 1144312270.

The previous prime is 1144312217. The next prime is 1144312321. The reversal of 1144312271 is 1722134411.

Together with previous prime (1144312217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144312271 - 2³⁰ = 70570447 is a prime.

It is a super-2 number, since 2×1144312271² = 2618901147122354882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1144312271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144312571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572156135 + 572156136.

It is an arithmetic number, because the mean of its divisors is an integer number (572156136).

Almost surely, 2^1144312271 is an apocalyptic number.

1144312271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144312271 is an equidigital number, since it uses as much as digits as its factorization.

1144312271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 1144312271 is about 33827.6849784315. The cubic root of 1144312271 is about 1045.9594588516.

Adding to 1144312271 its reverse (1722134411), we get a palindrome (2866446682).

The spelling of 1144312271 in words is "one billion, one hundred forty-four million, three hundred twelve thousand, two hundred seventy-one".