11203011011 has 8 divisors (see below), whose sum is σ = 11560029264. Its totient is φ = 10849982080.

The previous prime is 11203010971. The next prime is 11203011013. The reversal of 11203011011 is 11011030211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11203011011 - 2³⁰ = 10129269187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203010983 and 11203011001.

It is not an unprimeable number, because it can be changed into a prime (11203011013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991625 + ... + 1002858.

It is an arithmetic number, because the mean of its divisors is an integer number (1445003658).

Almost surely, 2^11203011011 is an apocalyptic number.

11203011011 is a deficient number, since it is larger than the sum of its proper divisors (357018253).

11203011011 is a wasteful number, since it uses less digits than its factorization.

11203011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994661.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11203011011 its reverse (11011030211), we get a palindrome (22214041222).

The spelling of 11203011011 in words is "eleven billion, two hundred three million, eleven thousand, eleven".