20324303134397 has 2 divisors, whose sum is σ = 20324303134398. Its totient is φ = 20324303134396.

The previous prime is 20324303134367. The next prime is 20324303134423. The reversal of 20324303134397 is 79343130342302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19634017998841 + 690285135556 = 4431029^2 + 830834^2 .

It is a cyclic number.

It is not a de Polignac number, because 20324303134397 - 2²² = 20324298940093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324303134357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162151567198 + 10162151567199.

It is an arithmetic number, because the mean of its divisors is an integer number (10162151567199).

Almost surely, 2^{20324303134397} is an apocalyptic number.

It is an amenable number.

20324303134397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324303134397 is an equidigital number, since it uses as much as digits as its factorization.

20324303134397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 44.

Adding to 20324303134397 its reverse (79343130342302), we get a palindrome (99667433476699).

The spelling of 20324303134397 in words is "twenty trillion, three hundred twenty-four billion, three hundred three million, one hundred thirty-four thousand, three hundred ninety-seven".