11223213432 has 96 divisors (see below), whose sum is σ = 28748413680. Its totient is φ = 3651148800.

The previous prime is 11223213431. The next prime is 11223213439. The reversal of 11223213432 is 23431232211.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223213431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18673932 + ... + 18674532.

Almost surely, 2^11223213432 is an apocalyptic number.

11223213432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11223213432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14374206840).

11223213432 is an abundant number, since it is smaller than the sum of its proper divisors (17525200248).

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

11223213432 is a wasteful number, since it uses less digits than its factorization.

11223213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993 (or 936 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 11223213432 its reverse (23431232211), we get a palindrome (34654445643).

The spelling of 11223213432 in words is "eleven billion, two hundred twenty-three million, two hundred thirteen thousand, four hundred thirty-two".