1144013231 has 2 divisors, whose sum is σ = 1144013232. Its totient is φ = 1144013230.

The previous prime is 1144013219. The next prime is 1144013267. The reversal of 1144013231 is 1323104411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1144013231 - 2¹⁸ = 1143751087 is a prime.

It is a super-2 number, since 2×1144013231² = 2617532545406118722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144012231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572006615 + 572006616.

It is an arithmetic number, because the mean of its divisors is an integer number (572006616).

Almost surely, 2^1144013231 is an apocalyptic number.

1144013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144013231 is an equidigital number, since it uses as much as digits as its factorization.

1144013231 is an evil number, because the sum of its binary digits is even.

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

The square root of 1144013231 is about 33823.2646413678. The cubic root of 1144013231 is about 1045.8683383376.

Adding to 1144013231 its reverse (1323104411), we get a palindrome (2467117642).

The spelling of 1144013231 in words is "one billion, one hundred forty-four million, thirteen thousand, two hundred thirty-one".