6321131 has 2 divisors, whose sum is σ = 6321132. Its totient is φ = 6321130.

The previous prime is 6321121. The next prime is 6321137. The reversal of 6321131 is 1311236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6321131 - 2²² = 2126827 is a prime.

It is a super-2 number, since 2×6321131² = 79913394238322, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p₄₃₃₄₃₀ and since 6321131 and 433430 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6321137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160565 + 3160566.

It is an arithmetic number, because the mean of its divisors is an integer number (3160566).

Almost surely, 2^6321131 is an apocalyptic number.

6321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6321131 is an equidigital number, since it uses as much as digits as its factorization.

6321131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 17.

The square root of 6321131 is about 2514.1859517546. The cubic root of 6321131 is about 184.8977374930.

Adding to 6321131 its reverse (1311236), we get a palindrome (7632367).

The spelling of 6321131 in words is "six million, three hundred twenty-one thousand, one hundred thirty-one".