1144320011 has 4 divisors (see below), whose sum is σ = 1204547400. Its totient is φ = 1084092624.

The previous prime is 1144319987. The next prime is 1144320029. The reversal of 1144320011 is 1100234411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1144320011 - 2⁶ = 1144319947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144320211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30113666 + ... + 30113703.

It is an arithmetic number, because the mean of its divisors is an integer number (301136850).

Almost surely, 2^1144320011 is an apocalyptic number.

1144320011 is a deficient number, since it is larger than the sum of its proper divisors (60227389).

1144320011 is an equidigital number, since it uses as much as digits as its factorization.

1144320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60227388.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1144320011 is about 33827.7993815737. The cubic root of 1144320011 is about 1045.9618170971.

Adding to 1144320011 its reverse (1100234411), we get a palindrome (2244554422).

The spelling of 1144320011 in words is "one billion, one hundred forty-four million, three hundred twenty thousand, eleven".