3128271131 has 6 divisors (see below), whose sum is σ = 3301582932. Its totient is φ = 2963624940.

The previous prime is 3128271119. The next prime is 3128271137. The reversal of 3128271131 is 1311728213.

It is not a de Polignac number, because 3128271131 - 2⁶ = 3128271067 is a prime.

It is a super-2 number, since 2×3128271131² = 19572160538096038322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3128271094 and 3128271103.

It is not an unprimeable number, because it can be changed into a prime (3128271137) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 4332425 + ... + 4333146.

It is an arithmetic number, because the mean of its divisors is an integer number (550263822).

Almost surely, 2^3128271131 is an apocalyptic number.

3128271131 is a deficient number, since it is larger than the sum of its proper divisors (173311801).

3128271131 is an equidigital number, since it uses as much as digits as its factorization.

3128271131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665609 (or 8665590 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 3128271131 is about 55930.9496701066. The cubic root of 3128271131 is about 1462.5188162870.

Adding to 3128271131 its reverse (1311728213), we get a palindrome (4439999344).

The spelling of 3128271131 in words is "three billion, one hundred twenty-eight million, two hundred seventy-one thousand, one hundred thirty-one".