1144042111 has 2 divisors, whose sum is σ = 1144042112. Its totient is φ = 1144042110.

The previous prime is 1144042061. The next prime is 1144042139. The reversal of 1144042111 is 1112404411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144042111 - 2¹¹ = 1144040063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144042411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572021055 + 572021056.

It is an arithmetic number, because the mean of its divisors is an integer number (572021056).

Almost surely, 2^1144042111 is an apocalyptic number.

1144042111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144042111 is an equidigital number, since it uses as much as digits as its factorization.

1144042111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1144042111 is about 33823.6915637545. The cubic root of 1144042111 is about 1045.8771390585.

Adding to 1144042111 its reverse (1112404411), we get a palindrome (2256446522).

The spelling of 1144042111 in words is "one billion, one hundred forty-four million, forty-two thousand, one hundred eleven".