1144111211 has 2 divisors, whose sum is σ = 1144111212. Its totient is φ = 1144111210.

The previous prime is 1144111207. The next prime is 1144111223. The reversal of 1144111211 is 1121114411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1144111211 - 2² = 1144111207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1144111211.

It is not a weakly prime, because it can be changed into another prime (1144111231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572055605 + 572055606.

It is an arithmetic number, because the mean of its divisors is an integer number (572055606).

Almost surely, 2^1144111211 is an apocalyptic number.

1144111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144111211 is an equidigital number, since it uses as much as digits as its factorization.

1144111211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32, while the sum is 17.

The square root of 1144111211 is about 33824.7130216947. The cubic root of 1144111211 is about 1045.8981955839.

Adding to 1144111211 its reverse (1121114411), we get a palindrome (2265225622).

The spelling of 1144111211 in words is "one billion, one hundred forty-four million, one hundred eleven thousand, two hundred eleven".