111430111 has 8 divisors (see below), whose sum is σ = 120096144. Its totient is φ = 102777600.

The previous prime is 111430069. The next prime is 111430129. The reversal of 111430111 is 111034111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111430111 - 2⁹ = 111429599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111430091 and 111430100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111430141) 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, 19536 + ... + 24586.

It is an arithmetic number, because the mean of its divisors is an integer number (15012018).

Almost surely, 2^111430111 is an apocalyptic number.

111430111 is a deficient number, since it is larger than the sum of its proper divisors (8666033).

111430111 is a wasteful number, since it uses less digits than its factorization.

111430111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6761.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 111430111 is about 10556.0461821650. The cubic root of 111430111 is about 481.2094946288.

Adding to 111430111 its reverse (111034111), we get a palindrome (222464222).

The spelling of 111430111 in words is "one hundred eleven million, four hundred thirty thousand, one hundred eleven".