20331321000032 has 72 divisors (see below), whose sum is σ = 46564475224176. Its totient is φ = 8713026647808.

The previous prime is 20331320999993. The next prime is 20331321000047. The reversal of 20331321000032 is 23000012313302.

It is a super-2 number, since 2×20331321000032² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20331320999968 and 20331321000013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35549813 + ... + 36117195.

It is an arithmetic number, because the mean of its divisors is an integer number (646728822558).

Almost surely, 2^{20331321000032} is an apocalyptic number.

It is an amenable number.

20331321000032 is an abundant number, since it is smaller than the sum of its proper divisors (26233154224144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20331321000032 is a wasteful number, since it uses less digits than its factorization.

20331321000032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590260 (or 590245 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20331321000032 its reverse (23000012313302), we get a palindrome (43331333313334).

The spelling of 20331321000032 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-one million, thirty-two", and thus it is an aban number.