11221432543 has 2 divisors, whose sum is σ = 11221432544. Its totient is φ = 11221432542.

The previous prime is 11221432513. The next prime is 11221432577. The reversal of 11221432543 is 34523412211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221432543 - 2⁵ = 11221432511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221432513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610716271 + 5610716272.

It is an arithmetic number, because the mean of its divisors is an integer number (5610716272).

Almost surely, 2^11221432543 is an apocalyptic number.

11221432543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221432543 is an equidigital number, since it uses as much as digits as its factorization.

11221432543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

Adding to 11221432543 its reverse (34523412211), we get a palindrome (45744844754).

The spelling of 11221432543 in words is "eleven billion, two hundred twenty-one million, four hundred thirty-two thousand, five hundred forty-three".