11143613243 has 4 divisors (see below), whose sum is σ = 12735558000. Its totient is φ = 9551668488.

The previous prime is 11143613233. The next prime is 11143613249. The reversal of 11143613243 is 34231634111.

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 11143613243 - 2¹⁴ = 11143596859 is a prime.

It is a super-2 number, since 2×11143613243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11143613249) 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, 795972368 + ... + 795972381.

It is an arithmetic number, because the mean of its divisors is an integer number (3183889500).

Almost surely, 2^11143613243 is an apocalyptic number.

11143613243 is a deficient number, since it is larger than the sum of its proper divisors (1591944757).

11143613243 is an equidigital number, since it uses as much as digits as its factorization.

11143613243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591944756.

The product of its digits is 5184, while the sum is 29.

The spelling of 11143613243 in words is "eleven billion, one hundred forty-three million, six hundred thirteen thousand, two hundred forty-three".