11203311012 has 24 divisors (see below), whose sum is σ = 27516904800. Its totient is φ = 3537887616.

The previous prime is 11203310983. The next prime is 11203311013. The reversal of 11203311012 is 21011330211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11203310982 and 11203311000.

It is not an unprimeable number, because it can be changed into a prime (11203311013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24568437 + ... + 24568892.

It is an arithmetic number, because the mean of its divisors is an integer number (1146537700).

Almost surely, 2^11203311012 is an apocalyptic number.

11203311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11203311012 is an abundant number, since it is smaller than the sum of its proper divisors (16313593788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203311012 is a wasteful number, since it uses less digits than its factorization.

11203311012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49137355 (or 49137353 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11203311012 its reverse (21011330211), we get a palindrome (32214641223).

The spelling of 11203311012 in words is "eleven billion, two hundred three million, three hundred eleven thousand, twelve".