10200020101 has 4 divisors (see below), whose sum is σ = 10201060204. Its totient is φ = 10198980000.

The previous prime is 10200020087. The next prime is 10200020107. The reversal of 10200020101 is 10102000201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10102000201 = 9901 ⋅1020301.

It can be written as a sum of positive squares in 2 ways, for example, as 8163303201 + 2036716900 = 90351^2 + 45130^2 .

It is a cyclic number.

It is not a de Polignac number, because 10200020101 - 2⁵ = 10200020069 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 (10200020107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505200 + ... + 525001.

It is an arithmetic number, because the mean of its divisors is an integer number (2550265051).

Almost surely, 2^10200020101 is an apocalyptic number.

It is an amenable number.

10200020101 is a deficient number, since it is larger than the sum of its proper divisors (1040103).

10200020101 is an equidigital number, since it uses as much as digits as its factorization.

10200020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040102.

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

Adding to 10200020101 its reverse (10102000201), we get a palindrome (20302020302).

The spelling of 10200020101 in words is "ten billion, two hundred million, twenty thousand, one hundred one".