831211112138 has 16 divisors (see below), whose sum is σ = 1366998638400. Its totient is φ = 375924621600.

The previous prime is 831211112107. The next prime is 831211112161.

831211112138 is nontrivially palindromic in base 10.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94926083 + ... + 94934838.

It is an arithmetic number, because the mean of its divisors is an integer number (85437414900).

Almost surely, 2^831211112138 is an apocalyptic number.

831211112138 is a deficient number, since it is larger than the sum of its proper divisors (535787526262).

831211112138 is a wasteful number, since it uses less digits than its factorization.

831211112138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189861133.

The product of its digits is 2304, while the sum is 32.

It can be divided in two parts, 831211 and 112138, that added together give a palindrome (943349).

The spelling of 831211112138 in words is "eight hundred thirty-one billion, two hundred eleven million, one hundred twelve thousand, one hundred thirty-eight".