20126324547601 has 2 divisors, whose sum is σ = 20126324547602. Its totient is φ = 20126324547600.

The previous prime is 20126324547569. The next prime is 20126324547673. The reversal of 20126324547601 is 10674542362102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20118804189201 + 7520358400 = 4485399^2 + 86720^2 .

It is a cyclic number.

It is not a de Polignac number, because 20126324547601 - 2⁵ = 20126324547569 is a prime.

It is not a weakly prime, because it can be changed into another prime (20126324547691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10063162273800 + 10063162273801.

It is an arithmetic number, because the mean of its divisors is an integer number (10063162273801).

Almost surely, 2^{20126324547601} is an apocalyptic number.

It is an amenable number.

20126324547601 is a deficient number, since it is larger than the sum of its proper divisors (1).

20126324547601 is an equidigital number, since it uses as much as digits as its factorization.

20126324547601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 20126324547601 in words is "twenty trillion, one hundred twenty-six billion, three hundred twenty-four million, five hundred forty-seven thousand, six hundred one".