1144511023 has 4 divisors (see below), whose sum is σ = 1172425968. Its totient is φ = 1116596080.

The previous prime is 1144511021. The next prime is 1144511029. The reversal of 1144511023 is 3201154411.

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 1144511023 - 2¹ = 1144511021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144510985 and 1144511003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144511021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13957411 + ... + 13957492.

It is an arithmetic number, because the mean of its divisors is an integer number (293106492).

Almost surely, 2^1144511023 is an apocalyptic number.

1144511023 is a deficient number, since it is larger than the sum of its proper divisors (27914945).

1144511023 is an equidigital number, since it uses as much as digits as its factorization.

1144511023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27914944.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1144511023 is about 33830.6225629976. The cubic root of 1144511023 is about 1046.0200118157.

Adding to 1144511023 its reverse (3201154411), we get a palindrome (4345665434).

The spelling of 1144511023 in words is "one billion, one hundred forty-four million, five hundred eleven thousand, twenty-three".