11203000403 has 4 divisors (see below), whose sum is σ = 12803429040. Its totient is φ = 9602571768.

The previous prime is 11203000331. The next prime is 11203000429. The reversal of 11203000403 is 30400030211.

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 11203000403 - 2³² = 6908033107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203000463) 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, 800214308 + ... + 800214321.

It is an arithmetic number, because the mean of its divisors is an integer number (3200857260).

Almost surely, 2^11203000403 is an apocalyptic number.

11203000403 is a deficient number, since it is larger than the sum of its proper divisors (1600428637).

11203000403 is an equidigital number, since it uses as much as digits as its factorization.

11203000403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600428636.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 11203000403 its reverse (30400030211), we get a palindrome (41603030614).

The spelling of 11203000403 in words is "eleven billion, two hundred three million, four hundred three", and thus it is an aban number.