111420025 has 12 divisors (see below), whose sum is σ = 140504400. Its totient is φ = 87624080.

The previous prime is 111420019. The next prime is 111420097. The reversal of 111420025 is 520024111.

It is not a de Polignac number, because 111420025 - 2³ = 111420017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111419990 and 111420008.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36295 + ... + 39244.

It is an arithmetic number, because the mean of its divisors is an integer number (11708700).

Almost surely, 2^111420025 is an apocalyptic number.

It is an amenable number.

111420025 is a deficient number, since it is larger than the sum of its proper divisors (29084375).

111420025 is an equidigital number, since it uses as much as digits as its factorization.

111420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75608 (or 75603 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 111420025 is about 10555.5684356647. The cubic root of 111420025 is about 481.1949754371.

Adding to 111420025 its reverse (520024111), we get a palindrome (631444136).

The spelling of 111420025 in words is "one hundred eleven million, four hundred twenty thousand, twenty-five".