111404431051100 has 144 divisors (see below), whose sum is σ = 264582182489856. Its totient is φ = 40379036544000.

The previous prime is 111404431051091. The next prime is 111404431051103. The reversal of 111404431051100 is 1150134404111.

It is a super-2 number, since 2×111404431051100² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111404431051100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111404431051103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1697765492 + ... + 1697831108.

Almost surely, 2^{111404431051100} is an apocalyptic number.

111404431051100 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 111404431051100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132291091244928).

111404431051100 is an abundant number, since it is smaller than the sum of its proper divisors (153177751438756).

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

111404431051100 is a wasteful number, since it uses less digits than its factorization.

111404431051100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70636 (or 70629 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 111404431051100 its reverse (1150134404111), we get a palindrome (112554565455211).

The spelling of 111404431051100 in words is "one hundred eleven trillion, four hundred four billion, four hundred thirty-one million, fifty-one thousand, one hundred".