831022323220138 has 32 divisors (see below), whose sum is σ = 1428012102996864. Its totient is φ = 355302664507392.

The previous prime is 831022323220093. The next prime is 831022323220147.

831022323220138 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 831022323220138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23226295 + ... + 46920202.

It is an arithmetic number, because the mean of its divisors is an integer number (44625378218652).

Almost surely, 2^{831022323220138} is an apocalyptic number.

831022323220138 is a deficient number, since it is larger than the sum of its proper divisors (596989779776726).

831022323220138 is a wasteful number, since it uses less digits than its factorization.

831022323220138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70148526.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 831022323220138 in words is "eight hundred thirty-one trillion, twenty-two billion, three hundred twenty-three million, two hundred twenty thousand, one hundred thirty-eight".