111223203432 has 128 divisors (see below), whose sum is σ = 317532856320. Its totient is φ = 32157216000.

The previous prime is 111223203431. The next prime is 111223203451. The reversal of 111223203432 is 234302322111.

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

It is not an unprimeable number, because it can be changed into a prime (111223203431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 485358 + ... + 676770.

It is an arithmetic number, because the mean of its divisors is an integer number (2480725440).

Almost surely, 2^111223203432 is an apocalyptic number.

111223203432 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 111223203432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158766428160).

111223203432 is an abundant number, since it is smaller than the sum of its proper divisors (206309652888).

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

111223203432 is a wasteful number, since it uses less digits than its factorization.

111223203432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191535 (or 191531 counting only the distinct ones).

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

Adding to 111223203432 its reverse (234302322111), we get a palindrome (345525525543).

The spelling of 111223203432 in words is "one hundred eleven billion, two hundred twenty-three million, two hundred three thousand, four hundred thirty-two".