424320131 has 2 divisors, whose sum is σ = 424320132. Its totient is φ = 424320130.

The previous prime is 424320121. The next prime is 424320137. The reversal of 424320131 is 131023424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424320131 is a prime.

It is a super-2 number, since 2×424320131² = 360095147143714322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424320137) 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, 212160065 + 212160066.

It is an arithmetic number, because the mean of its divisors is an integer number (212160066).

Almost surely, 2^424320131 is an apocalyptic number.

424320131 is a deficient number, since it is larger than the sum of its proper divisors (1).

424320131 is an equidigital number, since it uses as much as digits as its factorization.

424320131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 424320131 is about 20599.0322830952. The cubic root of 424320131 is about 751.4461761589.

Adding to 424320131 its reverse (131023424), we get a palindrome (555343555).

The spelling of 424320131 in words is "four hundred twenty-four million, three hundred twenty thousand, one hundred thirty-one".