20331033432021 has 128 divisors (see below), whose sum is σ = 34577231001600. Its totient is φ = 11848963186368.

The previous prime is 20331033432019. The next prime is 20331033432029. The reversal of 20331033432021 is 12023433013302.

20331033432021 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 1 + 0 + 334 + 320 + 2 + 1 = 666.

It is not a de Polignac number, because 20331033432021 - 2¹ = 20331033432019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331033432029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2693918770 + ... + 2693926316.

It is an arithmetic number, because the mean of its divisors is an integer number (270134617200).

Almost surely, 2^{20331033432021} is an apocalyptic number.

It is an amenable number.

20331033432021 is a deficient number, since it is larger than the sum of its proper divisors (14246197569579).

20331033432021 is an equidigital number, since it uses as much as digits as its factorization.

20331033432021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12587 (or 12569 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 20331033432021 its reverse (12023433013302), we get a palindrome (32354466445323).

The spelling of 20331033432021 in words is "twenty trillion, three hundred thirty-one billion, thirty-three million, four hundred thirty-two thousand, twenty-one".