20324131421441 has 4 divisors (see below), whose sum is σ = 20324210082900. Its totient is φ = 20324052759984.

The previous prime is 20324131421431. The next prime is 20324131421467. The reversal of 20324131421441 is 14412413142302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9893195169025 + 10430936252416 = 3145345^2 + 3229696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20324131421441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20324131421398 and 20324131421407.

It is not an unprimeable number, because it can be changed into a prime (20324131421431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38941886 + ... + 39460343.

It is an arithmetic number, because the mean of its divisors is an integer number (5081052520725).

Almost surely, 2^{20324131421441} is an apocalyptic number.

It is an amenable number.

20324131421441 is a deficient number, since it is larger than the sum of its proper divisors (78661459).

20324131421441 is an equidigital number, since it uses as much as digits as its factorization.

20324131421441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78661458.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 20324131421441 its reverse (14412413142302), we get a palindrome (34736544563743).

The spelling of 20324131421441 in words is "twenty trillion, three hundred twenty-four billion, one hundred thirty-one million, four hundred twenty-one thousand, four hundred forty-one".