5121331131 has 8 divisors (see below), whose sum is σ = 7803933184. Its totient is φ = 2926474920.

The previous prime is 5121331129. The next prime is 5121331139. The reversal of 5121331131 is 1311331215.

5121331131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5121331131 - 2¹ = 5121331129 is a prime.

It is a super-2 number, since 2×5121331131² = 52456065106699478322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 243872911 = 5121331131 / (5 + 1 + 2 + 1 + 3 + 3 + 1 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5121331098 and 5121331107.

It is not an unprimeable number, because it can be changed into a prime (5121331139) 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 7 ways as a sum of consecutive naturals, for example, 121936435 + ... + 121936476.

It is an arithmetic number, because the mean of its divisors is an integer number (975491648).

Almost surely, 2^5121331131 is an apocalyptic number.

5121331131 is a deficient number, since it is larger than the sum of its proper divisors (2682602053).

5121331131 is a wasteful number, since it uses less digits than its factorization.

5121331131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243872921.

The product of its digits is 270, while the sum is 21.

The square root of 5121331131 is about 71563.4762361360. The cubic root of 5121331131 is about 1723.6971054790.

Adding to 5121331131 its reverse (1311331215), we get a palindrome (6432662346).

The spelling of 5121331131 in words is "five billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred thirty-one".