11411422543 has 4 divisors (see below), whose sum is σ = 11425289008. Its totient is φ = 11397556080.

The previous prime is 11411422537. The next prime is 11411422639. The reversal of 11411422543 is 34522411411.

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 11411422543 - 2³³ = 2821487951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11411422843) 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, 6931998 + ... + 6933643.

It is an arithmetic number, because the mean of its divisors is an integer number (2856322252).

Almost surely, 2^11411422543 is an apocalyptic number.

11411422543 is a deficient number, since it is larger than the sum of its proper divisors (13866465).

11411422543 is an equidigital number, since it uses as much as digits as its factorization.

11411422543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13866464.

The product of its digits is 3840, while the sum is 28.

Adding to 11411422543 its reverse (34522411411), we get a palindrome (45933833954).

The spelling of 11411422543 in words is "eleven billion, four hundred eleven million, four hundred twenty-two thousand, five hundred forty-three".