11103003011 has 4 divisors (see below), whose sum is σ = 11105822832. Its totient is φ = 11100183192.

The previous prime is 11103002987. The next prime is 11103003047. The reversal of 11103003011 is 11030030111.

It is a happy number.

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 11103003011 - 2²⁶ = 11035894147 is a prime.

It is a super-2 number, since 2×11103003011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11103002983 and 11103003001.

It is not an unprimeable number, because it can be changed into a prime (11103003911) 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, 1403996 + ... + 1411881.

It is an arithmetic number, because the mean of its divisors is an integer number (2776455708).

Almost surely, 2^11103003011 is an apocalyptic number.

11103003011 is a deficient number, since it is larger than the sum of its proper divisors (2819821).

11103003011 is an equidigital number, since it uses as much as digits as its factorization.

11103003011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819820.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 11103003011 its reverse (11030030111), we get a palindrome (22133033122).

The spelling of 11103003011 in words is "eleven billion, one hundred three million, three thousand, eleven".