11243244643 has 4 divisors (see below), whose sum is σ = 11312221768. Its totient is φ = 11174267520.

The previous prime is 11243244613. The next prime is 11243244647. The reversal of 11243244643 is 34644234211.

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 11243244643 - 2²⁵ = 11209690211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11243244599 and 11243244608.

It is not an unprimeable number, because it can be changed into a prime (11243244647) 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, 34488318 + ... + 34488643.

It is an arithmetic number, because the mean of its divisors is an integer number (2828055442).

Almost surely, 2^11243244643 is an apocalyptic number.

11243244643 is a deficient number, since it is larger than the sum of its proper divisors (68977125).

11243244643 is an equidigital number, since it uses as much as digits as its factorization.

11243244643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68977124.

The product of its digits is 55296, while the sum is 34.

Adding to 11243244643 its reverse (34644234211), we get a palindrome (45887478854).

The spelling of 11243244643 in words is "eleven billion, two hundred forty-three million, two hundred forty-four thousand, six hundred forty-three".