1144111223 has 2 divisors, whose sum is σ = 1144111224. Its totient is φ = 1144111222.

The previous prime is 1144111211. The next prime is 1144111231. The reversal of 1144111223 is 3221114411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144111223 - 2⁴ = 1144111207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1144111195 and 1144111204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144110223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572055611 + 572055612.

It is an arithmetic number, because the mean of its divisors is an integer number (572055612).

Almost surely, 2^1144111223 is an apocalyptic number.

1144111223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144111223 is an equidigital number, since it uses as much as digits as its factorization.

1144111223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 1144111223 is about 33824.7131990798. The cubic root of 1144111223 is about 1045.8981992405.

Adding to 1144111223 its reverse (3221114411), we get a palindrome (4365225634).

The spelling of 1144111223 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, two hundred twenty-three".