111430042 has 16 divisors (see below), whose sum is σ = 170245800. Its totient is φ = 54685440.

The previous prime is 111430021. The next prime is 111430043. The reversal of 111430042 is 240034111.

It can be written as a sum of positive squares in 4 ways, for example, as 62583921 + 48846121 = 7911^2 + 6989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111429998 and 111430025.

It is not an unprimeable number, because it can be changed into a prime (111430043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98134 + ... + 99262.

Almost surely, 2^111430042 is an apocalyptic number.

111430042 is a deficient number, since it is larger than the sum of its proper divisors (58815758).

111430042 is a wasteful number, since it uses less digits than its factorization.

111430042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 111430042 is about 10556.0429138953. The cubic root of 111430042 is about 481.2093953035.

Adding to 111430042 its reverse (240034111), we get a palindrome (351464153).

The spelling of 111430042 in words is "one hundred eleven million, four hundred thirty thousand, forty-two".