11143041423 has 4 divisors (see below), whose sum is σ = 14857388568. Its totient is φ = 7428694280.

The previous prime is 11143041409. The next prime is 11143041451. The reversal of 11143041423 is 32414034111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11143041423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11143041393 and 11143041402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143041463) 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, 1857173568 + ... + 1857173573.

It is an arithmetic number, because the mean of its divisors is an integer number (3714347142).

Almost surely, 2^11143041423 is an apocalyptic number.

11143041423 is a deficient number, since it is larger than the sum of its proper divisors (3714347145).

11143041423 is an equidigital number, since it uses as much as digits as its factorization.

11143041423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714347144.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11143041423 its reverse (32414034111), we get a palindrome (43557075534).

The spelling of 11143041423 in words is "eleven billion, one hundred forty-three million, forty-one thousand, four hundred twenty-three".