11031110203 has 4 divisors (see below), whose sum is σ = 11058619608. Its totient is φ = 11003600800.

The previous prime is 11031110197. The next prime is 11031110267. The reversal of 11031110203 is 30201113011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30201113011 = 170843 ⋅176777.

It is a cyclic number.

It is not a de Polignac number, because 11031110203 - 2¹³ = 11031102011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031110273) 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, 13754101 + ... + 13754902.

It is an arithmetic number, because the mean of its divisors is an integer number (2764654902).

Almost surely, 2^11031110203 is an apocalyptic number.

11031110203 is a deficient number, since it is larger than the sum of its proper divisors (27509405).

11031110203 is an equidigital number, since it uses as much as digits as its factorization.

11031110203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27509404.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11031110203 its reverse (30201113011), we get a palindrome (41232223214).

The spelling of 11031110203 in words is "eleven billion, thirty-one million, one hundred ten thousand, two hundred three".