11221203113 has 4 divisors (see below), whose sum is σ = 11222581248. Its totient is φ = 11219824980.

The previous prime is 11221203079. The next prime is 11221203139. The reversal of 11221203113 is 31130212211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221203113 - 2⁸ = 11221202857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221203091 and 11221203100.

It is not an unprimeable number, because it can be changed into a prime (11221203143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676781 + ... + 693162.

It is an arithmetic number, because the mean of its divisors is an integer number (2805645312).

Almost surely, 2^11221203113 is an apocalyptic number.

It is an amenable number.

11221203113 is a deficient number, since it is larger than the sum of its proper divisors (1378135).

11221203113 is an equidigital number, since it uses as much as digits as its factorization.

11221203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378134.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11221203113 its reverse (31130212211), we get a palindrome (42351415324).

The spelling of 11221203113 in words is "eleven billion, two hundred twenty-one million, two hundred three thousand, one hundred thirteen".