11203220213 has 4 divisors (see below), whose sum is σ = 11690316768. Its totient is φ = 10716123660.

The previous prime is 11203220209. The next prime is 11203220219. The reversal of 11203220213 is 31202230211.

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 not a de Polignac number, because 11203220213 - 2² = 11203220209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203220191 and 11203220200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203220219) 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, 243548243 + ... + 243548288.

It is an arithmetic number, because the mean of its divisors is an integer number (2922579192).

Almost surely, 2^11203220213 is an apocalyptic number.

It is an amenable number.

11203220213 is a deficient number, since it is larger than the sum of its proper divisors (487096555).

11203220213 is an equidigital number, since it uses as much as digits as its factorization.

11203220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487096554.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11203220213 its reverse (31202230211), we get a palindrome (42405450424).

The spelling of 11203220213 in words is "eleven billion, two hundred three million, two hundred twenty thousand, two hundred thirteen".