20010200101 has 16 divisors (see below), whose sum is σ = 21038209920. Its totient is φ = 19014462720.

The previous prime is 20010200099. The next prime is 20010200117. The reversal of 20010200101 is 10100201002.

It is a cyclic number.

It is not a de Polignac number, because 20010200101 - 2¹ = 20010200099 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 (20010200141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203560 + ... + 285406.

It is an arithmetic number, because the mean of its divisors is an integer number (1314888120).

Almost surely, 2^20010200101 is an apocalyptic number.

It is an amenable number.

20010200101 is a deficient number, since it is larger than the sum of its proper divisors (1028009819).

20010200101 is an equidigital number, since it uses as much as digits as its factorization.

20010200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82044.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010200101 its reverse (10100201002), we get a palindrome (30110401103).

Subtracting from 20010200101 its reverse (10100201002), we obtain a palindrome (9909999099).

The spelling of 20010200101 in words is "twenty billion, ten million, two hundred thousand, one hundred one".