111341420440 has 128 divisors (see below), whose sum is σ = 279490046400. Its totient is φ = 39671562240.

The previous prime is 111341420431. The next prime is 111341420447. The reversal of 111341420440 is 44024143111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111341420447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15254872 + ... + 15262168.

Almost surely, 2^111341420440 is an apocalyptic number.

111341420440 is a gapful number since it is divisible by the number (10) 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 111341420440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139745023200).

111341420440 is an abundant number, since it is smaller than the sum of its proper divisors (168148625960).

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

111341420440 is a wasteful number, since it uses less digits than its factorization.

111341420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525 (or 8521 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 111341420440 its reverse (44024143111), we get a palindrome (155365563551).

The spelling of 111341420440 in words is "one hundred eleven billion, three hundred forty-one million, four hundred twenty thousand, four hundred forty".