82091000231 has 2 divisors, whose sum is σ = 82091000232. Its totient is φ = 82091000230.

The previous prime is 82091000219. The next prime is 82091000249. The reversal of 82091000231 is 13200019028.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82091000231 - 2¹⁴ = 82090983847 is a prime.

It is a super-2 number, since 2×82091000231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82091000231.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41045500115 + 41045500116.

It is an arithmetic number, because the mean of its divisors is an integer number (41045500116).

Almost surely, 2^82091000231 is an apocalyptic number.

82091000231 is a deficient number, since it is larger than the sum of its proper divisors (1).

82091000231 is an equidigital number, since it uses as much as digits as its factorization.

82091000231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

Adding to 82091000231 its reverse (13200019028), we get a palindrome (95291019259).

The spelling of 82091000231 in words is "eighty-two billion, ninety-one million, two hundred thirty-one", and thus it is an aban number.