10120020101 has 2 divisors, whose sum is σ = 10120020102. Its totient is φ = 10120020100.

The previous prime is 10120020077. The next prime is 10120020133. The reversal of 10120020101 is 10102002101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7267392001 + 2852628100 = 85249^2 + 53410^2 .

It is an emirp because it is prime and its reverse (10102002101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10120020101 - 2¹⁸ = 10119757957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10120023101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060010050 + 5060010051.

It is an arithmetic number, because the mean of its divisors is an integer number (5060010051).

Almost surely, 2^10120020101 is an apocalyptic number.

It is an amenable number.

10120020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120020101 is an equidigital number, since it uses as much as digits as its factorization.

10120020101 is an evil number, because the sum of its binary digits is even.

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

Adding to 10120020101 its reverse (10102002101), we get a palindrome (20222022202).

The spelling of 10120020101 in words is "ten billion, one hundred twenty million, twenty thousand, one hundred one".