20372326542313 has 2 divisors, whose sum is σ = 20372326542314. Its totient is φ = 20372326542312.

The previous prime is 20372326542277. The next prime is 20372326542319. The reversal of 20372326542313 is 31324562327302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17942992830889 + 2429333711424 = 4235917^2 + 1558632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20372326542313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20372326542313.

It is not a weakly prime, because it can be changed into another prime (20372326542319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10186163271156 + 10186163271157.

It is an arithmetic number, because the mean of its divisors is an integer number (10186163271157).

Almost surely, 2^{20372326542313} is an apocalyptic number.

It is an amenable number.

20372326542313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20372326542313 is an equidigital number, since it uses as much as digits as its factorization.

20372326542313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 43.

Adding to 20372326542313 its reverse (31324562327302), we get a palindrome (51696888869615).

The spelling of 20372326542313 in words is "twenty trillion, three hundred seventy-two billion, three hundred twenty-six million, five hundred forty-two thousand, three hundred thirteen".