11123032312 has 64 divisors (see below), whose sum is σ = 24448881600. Its totient is φ = 4645693440.

The previous prime is 11123032303. The next prime is 11123032337. The reversal of 11123032312 is 21323032111.

It is a self number, because there is not a number n which added to its sum of digits gives 11123032312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357408 + ... + 387280.

It is an arithmetic number, because the mean of its divisors is an integer number (382013775).

Almost surely, 2^11123032312 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 11123032312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12224440800).

11123032312 is an abundant number, since it is smaller than the sum of its proper divisors (13325849288).

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

11123032312 is a wasteful number, since it uses less digits than its factorization.

11123032312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30056 (or 30052 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11123032312 its reverse (21323032111), we get a palindrome (32446064423).

The spelling of 11123032312 in words is "eleven billion, one hundred twenty-three million, thirty-two thousand, three hundred twelve".