111205342120 has 32 divisors (see below), whose sum is σ = 250222669920. Its totient is φ = 44480243520.

The previous prime is 111205342099. The next prime is 111205342139. The reversal of 111205342120 is 21243502111.

It is a junction number, because it is equal to n+sod(n) for n = 111205342091 and 111205342100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1249915 + ... + 1335925.

It is an arithmetic number, because the mean of its divisors is an integer number (7819458435).

Almost surely, 2^111205342120 is an apocalyptic number.

111205342120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111205342120 is an abundant number, since it is smaller than the sum of its proper divisors (139017327800).

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

111205342120 is a wasteful number, since it uses less digits than its factorization.

111205342120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118345 (or 118341 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 111205342120 its reverse (21243502111), we get a palindrome (132448844231).

The spelling of 111205342120 in words is "one hundred eleven billion, two hundred five million, three hundred forty-two thousand, one hundred twenty".