111120420 has 48 divisors (see below), whose sum is σ = 311931648. Its totient is φ = 29556480.

The previous prime is 111120419. The next prime is 111120433. The reversal of 111120420 is 24021111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111120396 and 111120405.

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, 23712 + ... + 28008.

It is an arithmetic number, because the mean of its divisors is an integer number (6498576).

Almost surely, 2^111120420 is an apocalyptic number.

111120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111120420 is an abundant number, since it is smaller than the sum of its proper divisors (200811228).

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

111120420 is a wasteful number, since it uses less digits than its factorization.

111120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 111120420 is about 10541.3670840171. The cubic root of 111120420 is about 480.7632821352.

Adding to 111120420 its reverse (24021111), we get a palindrome (135141531).

The spelling of 111120420 in words is "one hundred eleven million, one hundred twenty thousand, four hundred twenty".