11103017203 has 4 divisors (see below), whose sum is σ = 11756135880. Its totient is φ = 10449898528.

The previous prime is 11103017201. The next prime is 11103017207. The reversal of 11103017203 is 30271030111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30271030111 = 7 ⋅4324432873.

It is a cyclic number.

It is not a de Polignac number, because 11103017203 - 2¹ = 11103017201 is a prime.

It is a super-2 number, since 2×11103017203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11103017201) 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, 326559313 + ... + 326559346.

It is an arithmetic number, because the mean of its divisors is an integer number (2939033970).

Almost surely, 2^11103017203 is an apocalyptic number.

11103017203 is a deficient number, since it is larger than the sum of its proper divisors (653118677).

11103017203 is an equidigital number, since it uses as much as digits as its factorization.

11103017203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653118676.

The product of its (nonzero) digits is 126, while the sum is 19.

Adding to 11103017203 its reverse (30271030111), we get a palindrome (41374047314).

The spelling of 11103017203 in words is "eleven billion, one hundred three million, seventeen thousand, two hundred three".