11225320543 has 4 divisors (see below), whose sum is σ = 11274339640. Its totient is φ = 11176301448.

The previous prime is 11225320531. The next prime is 11225320583. The reversal of 11225320543 is 34502352211.

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-11225320543 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 (11225320583) 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, 24509205 + ... + 24509662.

It is an arithmetic number, because the mean of its divisors is an integer number (2818584910).

Almost surely, 2^11225320543 is an apocalyptic number.

11225320543 is a deficient number, since it is larger than the sum of its proper divisors (49019097).

11225320543 is an equidigital number, since it uses as much as digits as its factorization.

11225320543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49019096.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 11225320543 its reverse (34502352211), we get a palindrome (45727672754).

The spelling of 11225320543 in words is "eleven billion, two hundred twenty-five million, three hundred twenty thousand, five hundred forty-three".