11231003213 has 4 divisors (see below), whose sum is σ = 11442908988. Its totient is φ = 11019097440.

The previous prime is 11231003209. The next prime is 11231003221. The reversal of 11231003213 is 31230013211.

11231003213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6206603524 + 5024399689 = 78782^2 + 70883^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231003213 - 2² = 11231003209 is a prime.

It is a super-2 number, since 2×11231003213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11231003191 and 11231003200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231003263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105952808 + ... + 105952913.

It is an arithmetic number, because the mean of its divisors is an integer number (2860727247).

Almost surely, 2^11231003213 is an apocalyptic number.

It is an amenable number.

11231003213 is a deficient number, since it is larger than the sum of its proper divisors (211905775).

11231003213 is an equidigital number, since it uses as much as digits as its factorization.

11231003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211905774.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11231003213 its reverse (31230013211), we get a palindrome (42461016424).

The spelling of 11231003213 in words is "eleven billion, two hundred thirty-one million, three thousand, two hundred thirteen".