6428340131 has 2 divisors, whose sum is σ = 6428340132. Its totient is φ = 6428340130.

The previous prime is 6428340119. The next prime is 6428340179. The reversal of 6428340131 is 1310438246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6428340131 - 2¹⁰ = 6428339107 is a prime.

It is a super-3 number, since 3×6428340131³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6428340181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214170065 + 3214170066.

It is an arithmetic number, because the mean of its divisors is an integer number (3214170066).

Almost surely, 2^6428340131 is an apocalyptic number.

6428340131 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428340131 is an equidigital number, since it uses as much as digits as its factorization.

6428340131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 6428340131 is about 80176.9301669751. The cubic root of 6428340131 is about 1859.3719823545.

Adding to 6428340131 its reverse (1310438246), we get a palindrome (7738778377).

The spelling of 6428340131 in words is "six billion, four hundred twenty-eight million, three hundred forty thousand, one hundred thirty-one".