11123216562 has 16 divisors (see below), whose sum is σ = 22559764032. Its totient is φ = 3655517040.

The previous prime is 11123216549. The next prime is 11123216579. The reversal of 11123216562 is 26561232111.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13054993 + ... + 13055844.

It is an arithmetic number, because the mean of its divisors is an integer number (1409985252).

Almost surely, 2^11123216562 is an apocalyptic number.

11123216562 is an abundant number, since it is smaller than the sum of its proper divisors (11436547470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123216562 is a wasteful number, since it uses less digits than its factorization.

11123216562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26110913.

The product of its digits is 4320, while the sum is 30.

Adding to 11123216562 its reverse (26561232111), we get a palindrome (37684448673).

The spelling of 11123216562 in words is "eleven billion, one hundred twenty-three million, two hundred sixteen thousand, five hundred sixty-two".