201121022123113 has 4 divisors (see below), whose sum is σ = 201121113445120. Its totient is φ = 201120930801108.

The previous prime is 201121022122931. The next prime is 201121022123201. The reversal of 201121022123113 is 311321220121102.

It is a happy number.

201121022123113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201121022123113 - 2¹³ = 201121022114921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201121022120113) 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, 42273753 + ... + 46790086.

It is an arithmetic number, because the mean of its divisors is an integer number (50280278361280).

Almost surely, 2^{201121022123113} is an apocalyptic number.

It is an amenable number.

201121022123113 is a deficient number, since it is larger than the sum of its proper divisors (91322007).

201121022123113 is an equidigital number, since it uses as much as digits as its factorization.

201121022123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91322006.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 201121022123113 its reverse (311321220121102), we get a palindrome (512442242244215).

The spelling of 201121022123113 in words is "two hundred one trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty-three thousand, one hundred thirteen".