11001026243 has 4 divisors (see below), whose sum is σ = 11005294440. Its totient is φ = 10996758048.

The previous prime is 11001026219. The next prime is 11001026251. The reversal of 11001026243 is 34262010011.

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-11001026243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001020243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130230 + ... + 2135387.

It is an arithmetic number, because the mean of its divisors is an integer number (2751323610).

Almost surely, 2^11001026243 is an apocalyptic number.

11001026243 is a deficient number, since it is larger than the sum of its proper divisors (4268197).

11001026243 is an equidigital number, since it uses as much as digits as its factorization.

11001026243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4268196.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11001026243 its reverse (34262010011), we get a palindrome (45263036254).

The spelling of 11001026243 in words is "eleven billion, one million, twenty-six thousand, two hundred forty-three".