20021032323021 has 8 divisors (see below), whose sum is σ = 27032617482880. Its totient is φ = 13178401022592.

The previous prime is 20021032323001. The next prime is 20021032323049. The reversal of 20021032323021 is 12032323012002.

It is a happy number.

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

It is not a de Polignac number, because 20021032323021 - 2¹¹ = 20021032320973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021032323001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42238464580 + ... + 42238465053.

It is an arithmetic number, because the mean of its divisors is an integer number (3379077185360).

Almost surely, 2^{20021032323021} is an apocalyptic number.

It is an amenable number.

20021032323021 is a deficient number, since it is larger than the sum of its proper divisors (7011585159859).

20021032323021 is an equidigital number, since it uses as much as digits as its factorization.

20021032323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84476929715.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20021032323021 its reverse (12032323012002), we get a palindrome (32053355335023).

The spelling of 20021032323021 in words is "twenty trillion, twenty-one billion, thirty-two million, three hundred twenty-three thousand, twenty-one".