201123000120121 has 8 divisors (see below), whose sum is σ = 203956520664384. Its totient is φ = 198289501860240.

The previous prime is 201123000120073. The next prime is 201123000120187. The reversal of 201123000120121 is 121021000321102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201123000120121 - 2³³ = 201114410185529 is a prime.

It is a super-2 number, since 2×201123000120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201123000120095 and 201123000120104.

It is not an unprimeable number, because it can be changed into a prime (201123000126121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13041606 + ... + 23923408.

It is an arithmetic number, because the mean of its divisors is an integer number (25494565083048).

Almost surely, 2^{201123000120121} is an apocalyptic number.

It is an amenable number.

201123000120121 is a deficient number, since it is larger than the sum of its proper divisors (2833520544263).

201123000120121 is a wasteful number, since it uses less digits than its factorization.

201123000120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142191.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 201123000120121 its reverse (121021000321102), we get a palindrome (322144000441223).

The spelling of 201123000120121 in words is "two hundred one trillion, one hundred twenty-three billion, one hundred twenty thousand, one hundred twenty-one".