11203022213 has 4 divisors (see below), whose sum is σ = 11204118828. Its totient is φ = 11201925600.

The previous prime is 11203022177. The next prime is 11203022239. The reversal of 11203022213 is 31222030211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31222030211 = 197 ⋅158487463.

It can be written as a sum of positive squares in 2 ways, for example, as 1949928964 + 9253093249 = 44158^2 + 96193^2 .

It is a cyclic number.

It is not a de Polignac number, because 11203022213 - 2⁸ = 11203021957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203022191 and 11203022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203022263) 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, 532838 + ... + 553463.

It is an arithmetic number, because the mean of its divisors is an integer number (2801029707).

Almost surely, 2^11203022213 is an apocalyptic number.

It is an amenable number.

11203022213 is a deficient number, since it is larger than the sum of its proper divisors (1096615).

11203022213 is a wasteful number, since it uses less digits than its factorization.

11203022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096614.

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

Adding to 11203022213 its reverse (31222030211), we get a palindrome (42425052424).

The spelling of 11203022213 in words is "eleven billion, two hundred three million, twenty-two thousand, two hundred thirteen".