11321443547 has 2 divisors, whose sum is σ = 11321443548. Its totient is φ = 11321443546.

The previous prime is 11321443543. The next prime is 11321443577. The reversal of 11321443547 is 74534412311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11321443547 - 2² = 11321443543 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321443541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660721773 + 5660721774.

It is an arithmetic number, because the mean of its divisors is an integer number (5660721774).

Almost surely, 2^11321443547 is an apocalyptic number.

11321443547 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321443547 is an equidigital number, since it uses as much as digits as its factorization.

11321443547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 35.

Adding to 11321443547 its reverse (74534412311), we get a palindrome (85855855858).

The spelling of 11321443547 in words is "eleven billion, three hundred twenty-one million, four hundred forty-three thousand, five hundred forty-seven".