111613111 has 8 divisors (see below), whose sum is σ = 114617664. Its totient is φ = 108622080.

The previous prime is 111613097. The next prime is 111613121. The reversal of 111613111 is 111316111.

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 111613111 - 2¹¹ = 111611063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111613121) 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, 14610 + ... + 20896.

It is an arithmetic number, because the mean of its divisors is an integer number (14327208).

Almost surely, 2^111613111 is an apocalyptic number.

111613111 is a deficient number, since it is larger than the sum of its proper divisors (3004553).

111613111 is an equidigital number, since it uses as much as digits as its factorization.

111613111 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 digits is 18, while the sum is 16.

The square root of 111613111 is about 10564.7106444048. The cubic root of 111613111 is about 481.4727782643.

Adding to 111613111 its reverse (111316111), we get a palindrome (222929222).

The spelling of 111613111 in words is "one hundred eleven million, six hundred thirteen thousand, one hundred eleven".