201013201021 has 16 divisors (see below), whose sum is σ = 214309350400. Its totient is φ = 187989562800.

The previous prime is 201013201019. The next prime is 201013201049. The reversal of 201013201021 is 120102310102.

201013201021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 201013201021 - 2¹ = 201013201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201013200992 and 201013201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201013201001) 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 15 ways as a sum of consecutive naturals, for example, 13638226 + ... + 13652956.

It is an arithmetic number, because the mean of its divisors is an integer number (13394334400).

Almost surely, 2^201013201021 is an apocalyptic number.

It is an amenable number.

201013201021 is a deficient number, since it is larger than the sum of its proper divisors (13296149379).

201013201021 is a wasteful number, since it uses less digits than its factorization.

201013201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23920.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201013201021 its reverse (120102310102), we get a palindrome (321115511123).

The spelling of 201013201021 in words is "two hundred one billion, thirteen million, two hundred one thousand, twenty-one".