11011203243 has 6 divisors (see below), whose sum is σ = 15905071364. Its totient is φ = 7340802156.

The previous prime is 11011203233. The next prime is 11011203311. The reversal of 11011203243 is 34230211011.

It is not a de Polignac number, because 11011203243 - 2⁵ = 11011203211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011203233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611733505 + ... + 611733522.

Almost surely, 2^11011203243 is an apocalyptic number.

11011203243 is a deficient number, since it is larger than the sum of its proper divisors (4893868121).

11011203243 is a wasteful number, since it uses less digits than its factorization.

11011203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223467033 (or 1223467030 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11011203243 its reverse (34230211011), we get a palindrome (45241414254).

The spelling of 11011203243 in words is "eleven billion, eleven million, two hundred three thousand, two hundred forty-three".