200121312013023 has 16 divisors (see below), whose sum is σ = 284395226432256. Its totient is φ = 124734748425600.

The previous prime is 200121312012991. The next prime is 200121312013031. The reversal of 200121312013023 is 320310213121002.

It is not a de Polignac number, because 200121312013023 - 2⁵ = 200121312012991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121312013033) 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 15 ways as a sum of consecutive naturals, for example, 12993195261 + ... + 12993210662.

It is an arithmetic number, because the mean of its divisors is an integer number (17774701652016).

Almost surely, 2^{200121312013023} is an apocalyptic number.

200121312013023 is a deficient number, since it is larger than the sum of its proper divisors (84273914419233).

200121312013023 is a wasteful number, since it uses less digits than its factorization.

200121312013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25986406094.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 200121312013023 its reverse (320310213121002), we get a palindrome (520431525134025).

The spelling of 200121312013023 in words is "two hundred trillion, one hundred twenty-one billion, three hundred twelve million, thirteen thousand, twenty-three".