11223001213 has 4 divisors (see below), whose sum is σ = 11226951648. Its totient is φ = 11219050780.

The previous prime is 11223001201. The next prime is 11223001219. The reversal of 11223001213 is 31210032211.

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: 31210032211 = 727 ⋅42929893.

It is a cyclic number.

It is not a de Polignac number, because 11223001213 - 2²¹ = 11220904061 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 (11223001219) 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, 1970953 + ... + 1976638.

It is an arithmetic number, because the mean of its divisors is an integer number (2806737912).

Almost surely, 2^11223001213 is an apocalyptic number.

It is an amenable number.

11223001213 is a deficient number, since it is larger than the sum of its proper divisors (3950435).

11223001213 is an equidigital number, since it uses as much as digits as its factorization.

11223001213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950434.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11223001213 its reverse (31210032211), we get a palindrome (42433033424).

The spelling of 11223001213 in words is "eleven billion, two hundred twenty-three million, one thousand, two hundred thirteen".