11203312012 has 12 divisors (see below), whose sum is σ = 19624819536. Its totient is φ = 5596220720.

The previous prime is 11203311947. The next prime is 11203312031. The reversal of 11203312012 is 21021330211.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1354183 + ... + 1362430.

It is an arithmetic number, because the mean of its divisors is an integer number (1635401628).

Almost surely, 2^11203312012 is an apocalyptic number.

It is an amenable number.

11203312012 is a deficient number, since it is larger than the sum of its proper divisors (8421507524).

11203312012 is a wasteful number, since it uses less digits than its factorization.

11203312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717648 (or 2717646 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11203312012 its reverse (21021330211), we get a palindrome (32224642223).

The spelling of 11203312012 in words is "eleven billion, two hundred three million, three hundred twelve thousand, twelve".