82391031011 has 2 divisors, whose sum is σ = 82391031012. Its totient is φ = 82391031010.

The previous prime is 82391030999. The next prime is 82391031031. The reversal of 82391031011 is 11013019328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82391031011 - 2⁶ = 82391030947 is a prime.

It is not a weakly prime, because it can be changed into another prime (82391031031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41195515505 + 41195515506.

It is an arithmetic number, because the mean of its divisors is an integer number (41195515506).

Almost surely, 2^82391031011 is an apocalyptic number.

82391031011 is a deficient number, since it is larger than the sum of its proper divisors (1).

82391031011 is an equidigital number, since it uses as much as digits as its factorization.

82391031011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 82391031011 in words is "eighty-two billion, three hundred ninety-one million, thirty-one thousand, eleven".