20331203213321 has 16 divisors (see below), whose sum is σ = 27297839280768. Its totient is φ = 14623842470400.

The previous prime is 20331203213257. The next prime is 20331203213371. The reversal of 20331203213321 is 12331230213302.

It is a cyclic number.

It is not a de Polignac number, because 20331203213321 - 2⁶ = 20331203213257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20331203213371) 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, 10155445160 + ... + 10155447161.

It is an arithmetic number, because the mean of its divisors is an integer number (1706114955048).

Almost surely, 2^{20331203213321} is an apocalyptic number.

It is an amenable number.

20331203213321 is a deficient number, since it is larger than the sum of its proper divisors (6966636067447).

20331203213321 is a wasteful number, since it uses less digits than its factorization.

20331203213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20310892352.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20331203213321 its reverse (12331230213302), we get a palindrome (32662433426623).

The spelling of 20331203213321 in words is "twenty trillion, three hundred thirty-one billion, two hundred three million, two hundred thirteen thousand, three hundred twenty-one".