201201113101 has 4 divisors (see below), whose sum is σ = 204997360572. Its totient is φ = 197404865632.

The previous prime is 201201113089. The next prime is 201201113119. The reversal of 201201113101 is 101311102102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 122691875076 + 78509238025 = 350274^2 + 280195^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201113101 - 2²¹ = 201199015949 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 (201201113161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1898123656 + ... + 1898123761.

It is an arithmetic number, because the mean of its divisors is an integer number (51249340143).

Almost surely, 2^201201113101 is an apocalyptic number.

It is an amenable number.

201201113101 is a deficient number, since it is larger than the sum of its proper divisors (3796247471).

201201113101 is an equidigital number, since it uses as much as digits as its factorization.

201201113101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796247470.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 201201113101 its reverse (101311102102), we get a palindrome (302512215203).

The spelling of 201201113101 in words is "two hundred one billion, two hundred one million, one hundred thirteen thousand, one hundred one".