11020443543 has 12 divisors (see below), whose sum is σ = 15934892688. Its totient is φ = 7339358880.

The previous prime is 11020443527. The next prime is 11020443557. The reversal of 11020443543 is 34534402011.

It is a happy number.

11020443543 is a `hidden beast` number, since 110 + 2 + 0 + 4 + 4 + 3 + 543 = 666.

It is not a de Polignac number, because 11020443543 - 2⁴ = 11020443527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020443503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624438 + ... + 641843.

It is an arithmetic number, because the mean of its divisors is an integer number (1327907724).

Almost surely, 2^11020443543 is an apocalyptic number.

11020443543 is a deficient number, since it is larger than the sum of its proper divisors (4914449145).

11020443543 is a wasteful number, since it uses less digits than its factorization.

11020443543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267254 (or 1267251 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 11020443543 its reverse (34534402011), we get a palindrome (45554845554).

The spelling of 11020443543 in words is "eleven billion, twenty million, four hundred forty-three thousand, five hundred forty-three".