200123230202121 has 8 divisors (see below), whose sum is σ = 266870793204864. Its totient is φ = 133395577000400.

The previous prime is 200123230202047. The next prime is 200123230202167. The reversal of 200123230202121 is 121202032321002.

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 200123230202121 - 2¹¹ = 200123230200073 is a prime.

It is a super-2 number, since 2×200123230202121² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (200123230202221) 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 7 ways as a sum of consecutive naturals, for example, 4977426801 + ... + 4977467006.

It is an arithmetic number, because the mean of its divisors is an integer number (33358849150608).

Almost surely, 2^{200123230202121} is an apocalyptic number.

It is an amenable number.

200123230202121 is a deficient number, since it is larger than the sum of its proper divisors (66747563002743).

200123230202121 is an equidigital number, since it uses as much as digits as its factorization.

200123230202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9954900511.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 200123230202121 its reverse (121202032321002), we get a palindrome (321325262523123).

The spelling of 200123230202121 in words is "two hundred trillion, one hundred twenty-three billion, two hundred thirty million, two hundred two thousand, one hundred twenty-one".