85123711 has 2 divisors, whose sum is σ = 85123712. Its totient is φ = 85123710.

The previous prime is 85123699. The next prime is 85123723. The reversal of 85123711 is 11732158.

It is a balanced prime because it is at equal distance from previous prime (85123699) and next prime (85123723).

It is a cyclic number.

It is not a de Polignac number, because 85123711 - 2⁵ = 85123679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85123711.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85123751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42561855 + 42561856.

It is an arithmetic number, because the mean of its divisors is an integer number (42561856).

Almost surely, 2^85123711 is an apocalyptic number.

85123711 is a deficient number, since it is larger than the sum of its proper divisors (1).

85123711 is an equidigital number, since it uses as much as digits as its factorization.

85123711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 28.

The square root of 85123711 is about 9226.2511888632. The cubic root of 85123711 is about 439.8961721268.

Adding to 85123711 its reverse (11732158), we get a palindrome (96855869).

The spelling of 85123711 in words is "eighty-five million, one hundred twenty-three thousand, seven hundred eleven".