324131221203431 has 2 divisors, whose sum is σ = 324131221203432. Its totient is φ = 324131221203430.

The previous prime is 324131221203403. The next prime is 324131221203467. The reversal of 324131221203431 is 134302122131423.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 324131221203431 - 2³⁰ = 324130147461607 is a prime.

It is a super-2 number, since 2×324131221203431² (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 (324131221202431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162065610601715 + 162065610601716.

It is an arithmetic number, because the mean of its divisors is an integer number (162065610601716).

Almost surely, 2^{324131221203431} is an apocalyptic number.

324131221203431 is a deficient number, since it is larger than the sum of its proper divisors (1).

324131221203431 is an equidigital number, since it uses as much as digits as its factorization.

324131221203431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 324131221203431 its reverse (134302122131423), we get a palindrome (458433343334854).

The spelling of 324131221203431 in words is "three hundred twenty-four trillion, one hundred thirty-one billion, two hundred twenty-one million, two hundred three thousand, four hundred thirty-one".