11203133212 has 12 divisors (see below), whose sum is σ = 20758746960. Its totient is φ = 5272062656.

The previous prime is 11203133209. The next prime is 11203133213. The reversal of 11203133212 is 21233130211.

It is a self number, because there is not a number n which added to its sum of digits gives 11203133212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203133213) 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, 82375912 + ... + 82376047.

It is an arithmetic number, because the mean of its divisors is an integer number (1729895580).

Almost surely, 2^11203133212 is an apocalyptic number.

It is an amenable number.

11203133212 is a deficient number, since it is larger than the sum of its proper divisors (9555613748).

11203133212 is a wasteful number, since it uses less digits than its factorization.

11203133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164751980 (or 164751978 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11203133212 its reverse (21233130211), we get a palindrome (32436263423).

The spelling of 11203133212 in words is "eleven billion, two hundred three million, one hundred thirty-three thousand, two hundred twelve".