20312021201332 has 144 divisors (see below), whose sum is σ = 42936259959936. Its totient is φ = 8232112512000.

The previous prime is 20312021201321. The next prime is 20312021201357. The reversal of 20312021201332 is 23310212021302.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 207003082 + ... + 207101182.

It is an arithmetic number, because the mean of its divisors is an integer number (298168471944).

Almost surely, 2^{20312021201332} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312021201332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21468129979968).

20312021201332 is an abundant number, since it is smaller than the sum of its proper divisors (22624238758604).

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

20312021201332 is a wasteful number, since it uses less digits than its factorization.

20312021201332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98330 (or 98287 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20312021201332 its reverse (23310212021302), we get a palindrome (43622233222634).

The spelling of 20312021201332 in words is "twenty trillion, three hundred twelve billion, twenty-one million, two hundred one thousand, three hundred thirty-two".