200020121331321 has 16 divisors (see below), whose sum is σ = 275960983636800. Its totient is φ = 128715375327168.

The previous prime is 200020121331301. The next prime is 200020121331353. The reversal of 200020121331321 is 123133121020002.

It is not a de Polignac number, because 200020121331321 - 2⁶ = 200020121331257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200020121331301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296165391 + ... + 296839988.

It is an arithmetic number, because the mean of its divisors is an integer number (17247561477300).

Almost surely, 2^{200020121331321} is an apocalyptic number.

It is an amenable number.

200020121331321 is a deficient number, since it is larger than the sum of its proper divisors (75940862305479).

200020121331321 is a wasteful number, since it uses less digits than its factorization.

200020121331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593009288.

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

Adding to 200020121331321 its reverse (123133121020002), we get a palindrome (323153242351323).

The spelling of 200020121331321 in words is "two hundred trillion, twenty billion, one hundred twenty-one million, three hundred thirty-one thousand, three hundred twenty-one".