111131344440 has 64 divisors (see below), whose sum is σ = 370437818400. Its totient is φ = 29635024896.

The previous prime is 111131344417. The next prime is 111131344481. The reversal of 111131344440 is 44443131111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51448617 + ... + 51450776.

Almost surely, 2^111131344440 is an apocalyptic number.

111131344440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111131344440 is an abundant number, since it is smaller than the sum of its proper divisors (259306473960).

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

111131344440 is a wasteful number, since it uses less digits than its factorization.

111131344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102899413 (or 102899403 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 111131344440 its reverse (44443131111), we get a palindrome (155574475551).

The spelling of 111131344440 in words is "one hundred eleven billion, one hundred thirty-one million, three hundred forty-four thousand, four hundred forty".