11220423213 has 8 divisors (see below), whose sum is σ = 14967573568. Its totient is φ = 7476777504.

The previous prime is 11220423209. The next prime is 11220423233. The reversal of 11220423213 is 31232402211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11220423213 - 2² = 11220423209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220423213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220423233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868681 + ... + 881502.

It is an arithmetic number, because the mean of its divisors is an integer number (1870946696).

Almost surely, 2^11220423213 is an apocalyptic number.

It is an amenable number.

11220423213 is a deficient number, since it is larger than the sum of its proper divisors (3747150355).

11220423213 is a wasteful number, since it uses less digits than its factorization.

11220423213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752323.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11220423213 its reverse (31232402211), we get a palindrome (42452825424).

The spelling of 11220423213 in words is "eleven billion, two hundred twenty million, four hundred twenty-three thousand, two hundred thirteen".