11203434003 has 4 divisors (see below), whose sum is σ = 14937912008. Its totient is φ = 7468956000.

The previous prime is 11203433987. The next prime is 11203434013. The reversal of 11203434003 is 30043430211.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11203434003 - 2⁴ = 11203433987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203434013) 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, 1867238998 + ... + 1867239003.

It is an arithmetic number, because the mean of its divisors is an integer number (3734478002).

Almost surely, 2^11203434003 is an apocalyptic number.

11203434003 is a deficient number, since it is larger than the sum of its proper divisors (3734478005).

11203434003 is an equidigital number, since it uses as much as digits as its factorization.

11203434003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734478004.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 11203434003 its reverse (30043430211), we get a palindrome (41246864214).

The spelling of 11203434003 in words is "eleven billion, two hundred three million, four hundred thirty-four thousand, three".