86213111 has 2 divisors, whose sum is σ = 86213112. Its totient is φ = 86213110.

The previous prime is 86213107. The next prime is 86213117. The reversal of 86213111 is 11131268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86213111 - 2² = 86213107 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86213117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43106555 + 43106556.

It is an arithmetic number, because the mean of its divisors is an integer number (43106556).

Almost surely, 2^86213111 is an apocalyptic number.

86213111 is a deficient number, since it is larger than the sum of its proper divisors (1).

86213111 is an equidigital number, since it uses as much as digits as its factorization.

86213111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 23.

The square root of 86213111 is about 9285.1015611031. The cubic root of 86213111 is about 441.7647974352.

Adding to 86213111 its reverse (11131268), we get a palindrome (97344379).

The spelling of 86213111 in words is "eighty-six million, two hundred thirteen thousand, one hundred eleven".