1144400011 has 2 divisors, whose sum is σ = 1144400012. Its totient is φ = 1144400010.

The previous prime is 1144399987. The next prime is 1144400027. The reversal of 1144400011 is 1100044411.

It is an a-pointer prime, because the next prime (1144400027) can be obtained adding 1144400011 to its sum of digits (16).

It is a strong prime.

It is an emirp because it is prime and its reverse (1100044411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144400011 - 2⁹ = 1144399499 is a prime.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1144400071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572200005 + 572200006.

It is an arithmetic number, because the mean of its divisors is an integer number (572200006).

Almost surely, 2^1144400011 is an apocalyptic number.

1144400011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144400011 is an equidigital number, since it uses as much as digits as its factorization.

1144400011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1144400011 is about 33828.9818203268. The cubic root of 1144400011 is about 1045.9861911052.

Adding to 1144400011 its reverse (1100044411), we get a palindrome (2244444422).

Subtracting from 1144400011 its reverse (1100044411), we obtain a square (44355600 = 6660²).

The spelling of 1144400011 in words is "one billion, one hundred forty-four million, four hundred thousand, eleven".