111441402 has 24 divisors (see below), whose sum is σ = 241686900. Its totient is φ = 37111680.

The previous prime is 111441401. The next prime is 111441427. The reversal of 111441402 is 204144111.

It can be written as a sum of positive squares in 2 ways, for example, as 111070521 + 370881 = 10539^2 + 609^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111441401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22224 + ... + 26772.

Almost surely, 2^111441402 is an apocalyptic number.

111441402 is an abundant number, since it is smaller than the sum of its proper divisors (130245498).

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

111441402 is a wasteful number, since it uses less digits than its factorization.

111441402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5918 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 111441402 is about 10556.5809806016. The cubic root of 111441402 is about 481.2257474257.

Adding to 111441402 its reverse (204144111), we get a palindrome (315585513).

The spelling of 111441402 in words is "one hundred eleven million, four hundred forty-one thousand, four hundred two".