111242601 has 24 divisors (see below), whose sum is σ = 169019136. Its totient is φ = 70405920.

The previous prime is 111242597. The next prime is 111242603. The reversal of 111242601 is 106242111.

111242601 is a `hidden beast` number, since 11 + 12 + 42 + 601 = 666.

It is not a de Polignac number, because 111242601 - 2² = 111242597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111242603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11026 + ... + 18548.

It is an arithmetic number, because the mean of its divisors is an integer number (7042464).

Almost surely, 2^111242601 is an apocalyptic number.

It is an amenable number.

111242601 is a deficient number, since it is larger than the sum of its proper divisors (57776535).

111242601 is a wasteful number, since it uses less digits than its factorization.

111242601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613 (or 7610 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 111242601 is about 10547.1608027943. The cubic root of 111242601 is about 480.9394232463.

Adding to 111242601 its reverse (106242111), we get a palindrome (217484712).

The spelling of 111242601 in words is "one hundred eleven million, two hundred forty-two thousand, six hundred one".