83109111 has 8 divisors (see below), whose sum is σ = 112690560. Its totient is φ = 54466872.

The previous prime is 83109101. The next prime is 83109119. The reversal of 83109111 is 11190138.

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

It is not a de Polignac number, because 83109111 - 2⁵ = 83109079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83109119) 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, 234595 + ... + 234948.

It is an arithmetic number, because the mean of its divisors is an integer number (14086320).

Almost surely, 2^83109111 is an apocalyptic number.

83109111 is a deficient number, since it is larger than the sum of its proper divisors (29581449).

83109111 is a wasteful number, since it uses less digits than its factorization.

83109111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469605.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 83109111 is about 9116.4198565007. The cubic root of 83109111 is about 436.3981279830.

Adding to 83109111 its reverse (11190138), we get a palindrome (94299249).

The spelling of 83109111 in words is "eighty-three million, one hundred nine thousand, one hundred eleven".