11212443203 has 4 divisors (see below), whose sum is σ = 12074938848. Its totient is φ = 10349947560.

The previous prime is 11212443169. The next prime is 11212443269. The reversal of 11212443203 is 30234421211.

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

It is a cyclic number.

It is not a de Polignac number, because 11212443203 - 2⁸ = 11212442947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212493203) 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, 431247803 + ... + 431247828.

It is an arithmetic number, because the mean of its divisors is an integer number (3018734712).

Almost surely, 2^11212443203 is an apocalyptic number.

11212443203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11212443203 is a deficient number, since it is larger than the sum of its proper divisors (862495645).

11212443203 is an equidigital number, since it uses as much as digits as its factorization.

11212443203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862495644.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 11212443203 its reverse (30234421211), we get a palindrome (41446864414).

The spelling of 11212443203 in words is "eleven billion, two hundred twelve million, four hundred forty-three thousand, two hundred three".