1144021011 has 16 divisors (see below), whose sum is σ = 1743756288. Its totient is φ = 653544000.

The previous prime is 1144020959. The next prime is 1144021133. The reversal of 1144021011 is 1101204411.

It is not a de Polignac number, because 1144021011 - 2¹⁴ = 1144004627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144026011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117126 + ... + 126516.

It is an arithmetic number, because the mean of its divisors is an integer number (108984768).

Almost surely, 2^1144021011 is an apocalyptic number.

1144021011 is a deficient number, since it is larger than the sum of its proper divisors (599735277).

1144021011 is an equidigital number, since it uses as much as digits as its factorization.

1144021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1144021011 is about 33823.3796507682. The cubic root of 1144021011 is about 1045.8707091835.

Adding to 1144021011 its reverse (1101204411), we get a palindrome (2245225422).

The spelling of 1144021011 in words is "one billion, one hundred forty-four million, twenty-one thousand, eleven".