3311232120020 has 96 divisors (see below), whose sum is σ = 7763019264000. Its totient is φ = 1175949855360.

The previous prime is 3311232120019. The next prime is 3311232120047. The reversal of 3311232120020 is 200212321133.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3311232119974 and 3311232120001.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 127346981 + ... + 127372979.

It is an arithmetic number, because the mean of its divisors is an integer number (80864784000).

Almost surely, 2^{3311232120020} 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 3311232120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881509632000).

3311232120020 is an abundant number, since it is smaller than the sum of its proper divisors (4451787143980).

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

3311232120020 is a wasteful number, since it uses less digits than its factorization.

3311232120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39525 (or 39523 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 3311232120020 its reverse (200212321133), we get a palindrome (3511444441153).

The spelling of 3311232120020 in words is "three trillion, three hundred eleven billion, two hundred thirty-two million, one hundred twenty thousand, twenty".