11203433213 has 4 divisors (see below), whose sum is σ = 12803923680. Its totient is φ = 9602942748.

The previous prime is 11203433159. The next prime is 11203433243. The reversal of 11203433213 is 31233430211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31233430211 = 3583 ⋅8717117.

It is not a de Polignac number, because 11203433213 - 2⁸ = 11203432957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203433243) 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, 800245223 + ... + 800245236.

It is an arithmetic number, because the mean of its divisors is an integer number (3200980920).

Almost surely, 2^11203433213 is an apocalyptic number.

It is an amenable number.

11203433213 is a deficient number, since it is larger than the sum of its proper divisors (1600490467).

11203433213 is an equidigital number, since it uses as much as digits as its factorization.

11203433213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600490466.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 11203433213 its reverse (31233430211), we get a palindrome (42436863424).

The spelling of 11203433213 in words is "eleven billion, two hundred three million, four hundred thirty-three thousand, two hundred thirteen".