11000013203 has 4 divisors (see below), whose sum is σ = 11039724720. Its totient is φ = 10960301688.

The previous prime is 11000013139. The next prime is 11000013221. The reversal of 11000013203 is 30231000011.

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 11000013203 - 2⁶ = 11000013139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000013253) 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, 19855343 + ... + 19855896.

It is an arithmetic number, because the mean of its divisors is an integer number (2759931180).

Almost surely, 2^11000013203 is an apocalyptic number.

11000013203 is a deficient number, since it is larger than the sum of its proper divisors (39711517).

11000013203 is an equidigital number, since it uses as much as digits as its factorization.

11000013203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39711516.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 11000013203 its reverse (30231000011), we get a palindrome (41231013214).

The spelling of 11000013203 in words is "eleven billion, thirteen thousand, two hundred three".