20126324571313 has 2 divisors, whose sum is σ = 20126324571314. Its totient is φ = 20126324571312.

The previous prime is 20126324571259. The next prime is 20126324571329. The reversal of 20126324571313 is 31317542362102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13577802627249 + 6548521944064 = 3684807^2 + 2559008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20126324571313 is a prime.

It is not a weakly prime, because it can be changed into another prime (20126324571383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063162285656 + 10063162285657.

It is an arithmetic number, because the mean of its divisors is an integer number (10063162285657).

Almost surely, 2^{20126324571313} is an apocalyptic number.

It is an amenable number.

20126324571313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20126324571313 is an equidigital number, since it uses as much as digits as its factorization.

20126324571313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 20126324571313 in words is "twenty trillion, one hundred twenty-six billion, three hundred twenty-four million, five hundred seventy-one thousand, three hundred thirteen".