20324202121387 has 2 divisors, whose sum is σ = 20324202121388. Its totient is φ = 20324202121386.

The previous prime is 20324202121351. The next prime is 20324202121417. The reversal of 20324202121387 is 78312120242302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20324202121387 - 2¹¹ = 20324202119339 is a prime.

It is not a weakly prime, because it can be changed into another prime (20324202121787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162101060693 + 10162101060694.

It is an arithmetic number, because the mean of its divisors is an integer number (10162101060694).

Almost surely, 2^{20324202121387} is an apocalyptic number.

20324202121387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324202121387 is an equidigital number, since it uses as much as digits as its factorization.

20324202121387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 20324202121387 its reverse (78312120242302), we get a palindrome (98636322363689).

The spelling of 20324202121387 in words is "twenty trillion, three hundred twenty-four billion, two hundred two million, one hundred twenty-one thousand, three hundred eighty-seven".