320231541650431 has 2 divisors, whose sum is σ = 320231541650432. Its totient is φ = 320231541650430.

The previous prime is 320231541650341. The next prime is 320231541650459. The reversal of 320231541650431 is 134056145132023.

Together with previous prime (320231541650341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320231541650431 - 2⁷ = 320231541650303 is a prime.

It is a super-2 number, since 2×320231541650431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320231541950431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160115770825215 + 160115770825216.

It is an arithmetic number, because the mean of its divisors is an integer number (160115770825216).

Almost surely, 2^{320231541650431} is an apocalyptic number.

320231541650431 is a deficient number, since it is larger than the sum of its proper divisors (1).

320231541650431 is an equidigital number, since it uses as much as digits as its factorization.

320231541650431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 320231541650431 its reverse (134056145132023), we get a palindrome (454287686782454).

The spelling of 320231541650431 in words is "three hundred twenty trillion, two hundred thirty-one billion, five hundred forty-one million, six hundred fifty thousand, four hundred thirty-one".