1324639430731 has 2 divisors, whose sum is σ = 1324639430732. Its totient is φ = 1324639430730.

The previous prime is 1324639430729. The next prime is 1324639430747. The reversal of 1324639430731 is 1370349364231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1324639430731 - 2¹ = 1324639430729 is a prime.

It is a super-2 number, since 2×1324639430731² (a number of 25 digits) contains 22 as substring.

Together with 1324639430729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1324639437731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662319715365 + 662319715366.

It is an arithmetic number, because the mean of its divisors is an integer number (662319715366).

Almost surely, 2^{1324639430731} is an apocalyptic number.

1324639430731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1324639430731 is an equidigital number, since it uses as much as digits as its factorization.

1324639430731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 1324639430731 in words is "one trillion, three hundred twenty-four billion, six hundred thirty-nine million, four hundred thirty thousand, seven hundred thirty-one".