111400124440 has 32 divisors (see below), whose sum is σ = 273436670160. Its totient is φ = 40509136000.

The previous prime is 111400124419. The next prime is 111400124443. The reversal of 111400124440 is 44421004111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111400124443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126590611 + ... + 126591490.

Almost surely, 2^111400124440 is an apocalyptic number.

111400124440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111400124440 is an abundant number, since it is smaller than the sum of its proper divisors (162036545720).

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

111400124440 is a wasteful number, since it uses less digits than its factorization.

111400124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253182123 (or 253182119 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 111400124440 its reverse (44421004111), we get a palindrome (155821128551).

The spelling of 111400124440 in words is "one hundred eleven billion, four hundred million, one hundred twenty-four thousand, four hundred forty".