83081111 has 2 divisors, whose sum is σ = 83081112. Its totient is φ = 83081110.

The previous prime is 83081099. The next prime is 83081123. The reversal of 83081111 is 11118038.

It is a balanced prime because it is at equal distance from previous prime (83081099) and next prime (83081123).

It is a cyclic number.

It is not a de Polignac number, because 83081111 - 2²² = 78886807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83081171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41540555 + 41540556.

It is an arithmetic number, because the mean of its divisors is an integer number (41540556).

Almost surely, 2^83081111 is an apocalyptic number.

83081111 is a deficient number, since it is larger than the sum of its proper divisors (1).

83081111 is an equidigital number, since it uses as much as digits as its factorization.

83081111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 23.

The square root of 83081111 is about 9114.8840365635. The cubic root of 83081111 is about 436.3491140224.

Adding to 83081111 its reverse (11118038), we get a palindrome (94199149).

The spelling of 83081111 in words is "eighty-three million, eighty-one thousand, one hundred eleven".