111123240432 has 40 divisors (see below), whose sum is σ = 287095947600. Its totient is φ = 37037521920.

The previous prime is 111123240413. The next prime is 111123240439. The reversal of 111123240432 is 234042321111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111123240439) 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, 419832 + ... + 631272.

It is an arithmetic number, because the mean of its divisors is an integer number (7177398690).

Almost surely, 2^111123240432 is an apocalyptic number.

111123240432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111123240432 is an abundant number, since it is smaller than the sum of its proper divisors (175972707168).

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

111123240432 is a wasteful number, since it uses less digits than its factorization.

111123240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222401 (or 222395 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 111123240432 its reverse (234042321111), we get a palindrome (345165561543).

The spelling of 111123240432 in words is "one hundred eleven billion, one hundred twenty-three million, two hundred forty thousand, four hundred thirty-two".