831421141124139 has 12 divisors (see below), whose sum is σ = 1200944438386056. Its totient is φ = 554279473012992.

The previous prime is 831421141124131. The next prime is 831421141124179. The reversal of 831421141124139 is 931421141124138.

831421141124139 is a `hidden beast` number, since 8 + 3 + 1 + 4 + 2 + 114 + 112 + 413 + 9 = 666.

It is not a de Polignac number, because 831421141124139 - 2³ = 831421141124131 is a prime.

It is a super-2 number, since 2×831421141124139² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 831421141124094 and 831421141124103.

It is not an unprimeable number, because it can be changed into a prime (831421141124131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103214049 + ... + 110977394.

It is an arithmetic number, because the mean of its divisors is an integer number (100078703198838).

Almost surely, 2^{831421141124139} is an apocalyptic number.

831421141124139 is a deficient number, since it is larger than the sum of its proper divisors (369523297261917).

831421141124139 is a wasteful number, since it uses less digits than its factorization.

831421141124139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214622746 (or 214622743 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

Subtracting 831421141124139 from its reverse (931421141124138), we obtain a palindrome (99999999999999).

The spelling of 831421141124139 in words is "eight hundred thirty-one trillion, four hundred twenty-one billion, one hundred forty-one million, one hundred twenty-four thousand, one hundred thirty-nine".