111235242440 has 64 divisors (see below), whose sum is σ = 287686978560. Its totient is φ = 37917331200.

The previous prime is 111235242389. The next prime is 111235242449. The reversal of 111235242440 is 44242532111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111235242449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099736 + ... + 1196615.

It is an arithmetic number, because the mean of its divisors is an integer number (4495109040).

Almost surely, 2^111235242440 is an apocalyptic number.

111235242440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111235242440 is an abundant number, since it is smaller than the sum of its proper divisors (176451736120).

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

111235242440 is a wasteful number, since it uses less digits than its factorization.

111235242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2296542 (or 2296538 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 111235242440 its reverse (44242532111), we get a palindrome (155477774551).

The spelling of 111235242440 in words is "one hundred eleven billion, two hundred thirty-five million, two hundred forty-two thousand, four hundred forty".