831223322138 has 32 divisors (see below), whose sum is σ = 1436659035840. Its totient is φ = 356721356160.

The previous prime is 831223322107. The next prime is 831223322161.

831223322138 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×831223322138³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3270995 + ... + 3515942.

It is an arithmetic number, because the mean of its divisors is an integer number (44895594870).

Almost surely, 2^831223322138 is an apocalyptic number.

831223322138 is a deficient number, since it is larger than the sum of its proper divisors (605435713702).

831223322138 is a wasteful number, since it uses less digits than its factorization.

831223322138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6787262.

The product of its digits is 82944, while the sum is 38.

The spelling of 831223322138 in words is "eight hundred thirty-one billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred thirty-eight".