7130400331 has 2 divisors, whose sum is σ = 7130400332. Its totient is φ = 7130400330.

The previous prime is 7130400311. The next prime is 7130400359. The reversal of 7130400331 is 1330040317.

It is a happy number.

7130400331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1330040317) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7130400331 is a prime.

It is a super-2 number, since 2×7130400331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7130400311) 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, 3565200165 + 3565200166.

It is an arithmetic number, because the mean of its divisors is an integer number (3565200166).

Almost surely, 2^7130400331 is an apocalyptic number.

7130400331 is a deficient number, since it is larger than the sum of its proper divisors (1).

7130400331 is an equidigital number, since it uses as much as digits as its factorization.

7130400331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 7130400331 is about 84441.6978216331. The cubic root of 7130400331 is about 1924.7365991206.

Adding to 7130400331 its reverse (1330040317), we get a palindrome (8460440648).

The spelling of 7130400331 in words is "seven billion, one hundred thirty million, four hundred thousand, three hundred thirty-one".