20139162344101 has 2 divisors, whose sum is σ = 20139162344102. Its totient is φ = 20139162344100.

The previous prime is 20139162344069. The next prime is 20139162344141. The reversal of 20139162344101 is 10144326193102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19229715928900 + 909446415201 = 4385170^2 + 953649^2 .

It is a cyclic number.

It is not a de Polignac number, because 20139162344101 - 2⁵ = 20139162344069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20139162344141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10069581172050 + 10069581172051.

It is an arithmetic number, because the mean of its divisors is an integer number (10069581172051).

Almost surely, 2^{20139162344101} is an apocalyptic number.

It is an amenable number.

20139162344101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20139162344101 is an equidigital number, since it uses as much as digits as its factorization.

20139162344101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 20139162344101 in words is "twenty trillion, one hundred thirty-nine billion, one hundred sixty-two million, three hundred forty-four thousand, one hundred one".