11143530053 has 6 divisors (see below), whose sum is σ = 11541040914. Its totient is φ = 10759269584.

The previous prime is 11143530043. The next prime is 11143530149. The reversal of 11143530053 is 35003534111.

It can be written as a sum of positive squares in 3 ways, for example, as 3378748129 + 7764781924 = 58127^2 + 88118^2 .

It is not a de Polignac number, because 11143530053 - 2¹² = 11143525957 is a prime.

It is a super-2 number, since 2×11143530053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143530043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6624326 + ... + 6626007.

It is an arithmetic number, because the mean of its divisors is an integer number (1923506819).

Almost surely, 2^11143530053 is an apocalyptic number.

It is an amenable number.

11143530053 is a deficient number, since it is larger than the sum of its proper divisors (397510861).

11143530053 is an equidigital number, since it uses as much as digits as its factorization.

11143530053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13250391 (or 13250362 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 11143530053 in words is "eleven billion, one hundred forty-three million, five hundred thirty thousand, fifty-three".