111304304040400 has 120 divisors (see below), whose sum is σ = 268627128888384. Its totient is φ = 44319073075200.

The previous prime is 111304304040359. The next prime is 111304304040403. The reversal of 111304304040400 is 4040403403111.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111304304040403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154972519 + ... + 155689081.

Almost surely, 2^{111304304040400} is an apocalyptic number.

111304304040400 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 111304304040400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134313564444192).

111304304040400 is an abundant number, since it is smaller than the sum of its proper divisors (157322824847984).

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

111304304040400 is a wasteful number, since it uses less digits than its factorization.

111304304040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718349 (or 718338 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 111304304040400 its reverse (4040403403111), we get a palindrome (115344707443511).

The spelling of 111304304040400 in words is "one hundred eleven trillion, three hundred four billion, three hundred four million, forty thousand, four hundred".