111205404120 has 64 divisors (see below), whose sum is σ = 353240701920. Its totient is φ = 27910375424.

The previous prime is 111205404119. The next prime is 111205404203. The reversal of 111205404120 is 21404502111.

111205404120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 27254187 + ... + 27258266.

Almost surely, 2^111205404120 is an apocalyptic number.

111205404120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111205404120 is an abundant number, since it is smaller than the sum of its proper divisors (242035297800).

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

111205404120 is a wasteful number, since it uses less digits than its factorization.

111205404120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54512484 (or 54512480 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 111205404120 its reverse (21404502111), we get a palindrome (132609906231).

The spelling of 111205404120 in words is "one hundred eleven billion, two hundred five million, four hundred four thousand, one hundred twenty".