11203033213 has 12 divisors (see below), whose sum is σ = 11973397440. Its totient is φ = 10479026376.

The previous prime is 11203033199. The next prime is 11203033243. The reversal of 11203033213 is 31233030211.

It is a de Polignac number, because none of the positive numbers 2^k-11203033213 is a prime.

It is a super-2 number, since 2×11203033213² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203033243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167895 + ... + 224932.

It is an arithmetic number, because the mean of its divisors is an integer number (997783120).

Almost surely, 2^11203033213 is an apocalyptic number.

It is an amenable number.

11203033213 is a deficient number, since it is larger than the sum of its proper divisors (770364227).

11203033213 is an equidigital number, since it uses as much as digits as its factorization.

11203033213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392944 (or 392925 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 11203033213 its reverse (31233030211), we get a palindrome (42436063424).

The spelling of 11203033213 in words is "eleven billion, two hundred three million, thirty-three thousand, two hundred thirteen".