20100120101 has 8 divisors (see below), whose sum is σ = 20962416384. Its totient is φ = 19251192960.

The previous prime is 20100120077. The next prime is 20100120113. The reversal of 20100120101 is 10102100102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20100120101 - 2⁶ = 20100120037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100120181) 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 in 7 ways as a sum of consecutive naturals, for example, 3339215 + ... + 3345228.

It is an arithmetic number, because the mean of its divisors is an integer number (2620302048).

Almost surely, 2^20100120101 is an apocalyptic number.

It is an amenable number.

20100120101 is a deficient number, since it is larger than the sum of its proper divisors (862296283).

20100120101 is an equidigital number, since it uses as much as digits as its factorization.

20100120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684571.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20100120101 its reverse (10102100102), we get a palindrome (30202220203).

The spelling of 20100120101 in words is "twenty billion, one hundred million, one hundred twenty thousand, one hundred one".