201123331310121 has 64 divisors (see below), whose sum is σ = 313778923186176. Its totient is φ = 113233701862400.

The previous prime is 201123331310089. The next prime is 201123331310149. The reversal of 201123331310121 is 121013133321102.

It is a cyclic number.

It is not a de Polignac number, because 201123331310121 - 2⁵ = 201123331310089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201123331310091 and 201123331310100.

It is not an unprimeable number, because it can be changed into a prime (201123331310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47367820 + ... + 51438866.

It is an arithmetic number, because the mean of its divisors is an integer number (4902795674784).

Almost surely, 2^{201123331310121} is an apocalyptic number.

It is an amenable number.

201123331310121 is a deficient number, since it is larger than the sum of its proper divisors (112655591876055).

201123331310121 is a wasteful number, since it uses less digits than its factorization.

201123331310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4072222.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 201123331310121 its reverse (121013133321102), we get a palindrome (322136464631223).

The spelling of 201123331310121 in words is "two hundred one trillion, one hundred twenty-three billion, three hundred thirty-one million, three hundred ten thousand, one hundred twenty-one".