11203011311212 has 48 divisors (see below), whose sum is σ = 23212295507968. Its totient is φ = 4629636077760.

The previous prime is 11203011311209. The next prime is 11203011311237. The reversal of 11203011311212 is 21211311030211.

It is a self number, because there is not a number n which added to its sum of digits gives 11203011311212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23056848 + ... + 23537719.

Almost surely, 2^{11203011311212} is an apocalyptic number.

It is an amenable number.

11203011311212 is an abundant number, since it is smaller than the sum of its proper divisors (12009284196756).

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

11203011311212 is a wasteful number, since it uses less digits than its factorization.

11203011311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46594886 (or 46594884 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11203011311212 its reverse (21211311030211), we get a palindrome (32414322341423).

The spelling of 11203011311212 in words is "eleven trillion, two hundred three billion, eleven million, three hundred eleven thousand, two hundred twelve".