11011213232 has 40 divisors (see below), whose sum is σ = 22127869440. Its totient is φ = 5301793280.

The previous prime is 11011213231. The next prime is 11011213243. The reversal of 11011213232 is 23231211011.

It is a self number, because there is not a number n which added to its sum of digits gives 11011213232.

It is not an unprimeable number, because it can be changed into a prime (11011213231) 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, 146732 + ... + 208692.

It is an arithmetic number, because the mean of its divisors is an integer number (553196736).

Almost surely, 2^11011213232 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 11011213232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11063934720).

11011213232 is an abundant number, since it is smaller than the sum of its proper divisors (11116656208).

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

11011213232 is a wasteful number, since it uses less digits than its factorization.

11011213232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62381 (or 62375 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11011213232 its reverse (23231211011), we get a palindrome (34242424243).

The spelling of 11011213232 in words is "eleven billion, eleven million, two hundred thirteen thousand, two hundred thirty-two".