831631341345 has 128 divisors (see below), whose sum is σ = 1595162419200. Its totient is φ = 361942468608.

The previous prime is 831631341337. The next prime is 831631341371. The reversal of 831631341345 is 543143136138.

It is not a de Polignac number, because 831631341345 - 2³ = 831631341337 is a prime.

It is a super-2 number, since 2×831631341345² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 831631341297 and 831631341306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 143803324 + ... + 143809106.

It is an arithmetic number, because the mean of its divisors is an integer number (12462206400).

Almost surely, 2^831631341345 is an apocalyptic number.

It is an amenable number.

831631341345 is a deficient number, since it is larger than the sum of its proper divisors (763531077855).

831631341345 is a wasteful number, since it uses less digits than its factorization.

831631341345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479.

The product of its digits is 311040, while the sum is 42.

The spelling of 831631341345 in words is "eight hundred thirty-one billion, six hundred thirty-one million, three hundred forty-one thousand, three hundred forty-five".