11123223232 has 56 divisors (see below), whose sum is σ = 24212562192. Its totient is φ = 5028019200.

The previous prime is 11123223217. The next prime is 11123223247. The reversal of 11123223232 is 23232232111.

It is an interprime number because it is at equal distance from previous prime (11123223217) and next prime (11123223247).

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 83778 + ... + 171070.

It is an arithmetic number, because the mean of its divisors is an integer number (432367182).

Almost surely, 2^11123223232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11123223232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12106281096).

11123223232 is an abundant number, since it is smaller than the sum of its proper divisors (13089338960).

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

11123223232 is a wasteful number, since it uses less digits than its factorization.

11123223232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87497 (or 87487 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 11123223232 its reverse (23232232111), we get a palindrome (34355455343).

The spelling of 11123223232 in words is "eleven billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred thirty-two".