111040431 has 8 divisors (see below), whose sum is σ = 148242864. Its totient is φ = 73932480.

The previous prime is 111040421. The next prime is 111040451. The reversal of 111040431 is 134040111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111040431 - 2⁵ = 111040399 is a prime.

It is a super-2 number, since 2×111040431² = 24659954633331522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111040431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111040421) 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, 20830 + ... + 25611.

It is an arithmetic number, because the mean of its divisors is an integer number (18530358).

Almost surely, 2^111040431 is an apocalyptic number.

111040431 is a deficient number, since it is larger than the sum of its proper divisors (37202433).

111040431 is an equidigital number, since it uses as much as digits as its factorization.

111040431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47241.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111040431 is about 10537.5723485061. The cubic root of 111040431 is about 480.6478967866.

Adding to 111040431 its reverse (134040111), we get a palindrome (245080542).

The spelling of 111040431 in words is "one hundred eleven million, forty thousand, four hundred thirty-one".