111144234040 has 128 divisors (see below), whose sum is σ = 303912984960. Its totient is φ = 35710746624.

The previous prime is 111144233957. The next prime is 111144234041. The reversal of 111144234040 is 40432441111.

It is a junction number, because it is equal to n+sod(n) for n = 111144233996 and 111144234014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111144234041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1058974 + ... + 1159186.

It is an arithmetic number, because the mean of its divisors is an integer number (2374320195).

Almost surely, 2^111144234040 is an apocalyptic number.

111144234040 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 111144234040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151956492480).

111144234040 is an abundant number, since it is smaller than the sum of its proper divisors (192768750920).

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

111144234040 is a wasteful number, since it uses less digits than its factorization.

111144234040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100481 (or 100477 counting only the distinct ones).

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

Adding to 111144234040 its reverse (40432441111), we get a palindrome (151576675151).

The spelling of 111144234040 in words is "one hundred eleven billion, one hundred forty-four million, two hundred thirty-four thousand, forty".