11011213203 has 32 divisors (see below), whose sum is σ = 16104268800. Its totient is φ = 6665492736.

The previous prime is 11011213189. The next prime is 11011213229. The reversal of 11011213203 is 30231211011.

It is a happy number.

It is not a de Polignac number, because 11011213203 - 2¹³ = 11011205011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011213243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202150 + ... + 250772.

It is an arithmetic number, because the mean of its divisors is an integer number (503258400).

Almost surely, 2^11011213203 is an apocalyptic number.

11011213203 is a deficient number, since it is larger than the sum of its proper divisors (5093055597).

11011213203 is a wasteful number, since it uses less digits than its factorization.

11011213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48811.

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

Adding to 11011213203 its reverse (30231211011), we get a palindrome (41242424214).

The spelling of 11011213203 in words is "eleven billion, eleven million, two hundred thirteen thousand, two hundred three".