111112100420 has 24 divisors (see below), whose sum is σ = 234381767424. Its totient is φ = 44245534176.

The previous prime is 111112100381. The next prime is 111112100479. The reversal of 111112100420 is 24001211111.

It is a junction number, because it is equal to n+sod(n) for n = 111112100395 and 111112100404.

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, 12452054 + ... + 12460973.

It is an arithmetic number, because the mean of its divisors is an integer number (9765906976).

Almost surely, 2^111112100420 is an apocalyptic number.

111112100420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111112100420 is an abundant number, since it is smaller than the sum of its proper divisors (123269667004).

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

111112100420 is a wasteful number, since it uses less digits than its factorization.

111112100420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24913259 (or 24913257 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111112100420 its reverse (24001211111), we get a palindrome (135113311531).

The spelling of 111112100420 in words is "one hundred eleven billion, one hundred twelve million, one hundred thousand, four hundred twenty".