3117583012831 has 6 divisors (see below), whose sum is σ = 3626576157840. Its totient is φ = 2672214010956.

The previous prime is 3117583012793. The next prime is 3117583012837. The reversal of 3117583012831 is 1382103857113.

It is not a de Polignac number, because 3117583012831 - 2⁹ = 3117583012319 is a prime.

It is a super-2 number, since 2×3117583012831² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117583012837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31812071511 + ... + 31812071608.

It is an arithmetic number, because the mean of its divisors is an integer number (604429359640).

Almost surely, 2^{3117583012831} is an apocalyptic number.

3117583012831 is a deficient number, since it is larger than the sum of its proper divisors (508993145009).

3117583012831 is an equidigital number, since it uses as much as digits as its factorization.

3117583012831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63624143133 (or 63624143126 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

Adding to 3117583012831 its reverse (1382103857113), we get a palindrome (4499686869944).

The spelling of 3117583012831 in words is "three trillion, one hundred seventeen billion, five hundred eighty-three million, twelve thousand, eight hundred thirty-one".