33132312020 has 24 divisors (see below), whose sum is σ = 69612232200. Its totient is φ = 13246376832.

The previous prime is 33132312001. The next prime is 33132312047. The reversal of 33132312020 is 2021323133.

It can be written as a sum of positive squares in 4 ways, for example, as 3163162564 + 29969149456 = 56242^2 + 173116^2 .

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 = 33132311983 and 33132312001.

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 7 ways as a sum of consecutive naturals, for example, 367655 + ... + 448814.

It is an arithmetic number, because the mean of its divisors is an integer number (2900509675).

Almost surely, 2^33132312020 is an apocalyptic number.

It is an amenable number.

33132312020 is an abundant number, since it is smaller than the sum of its proper divisors (36479920180).

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

33132312020 is a wasteful number, since it uses less digits than its factorization.

33132312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818507 (or 818505 counting only the distinct ones).

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

Adding to 33132312020 its reverse (2021323133), we get a palindrome (35153635153).

It can be divided in two parts, 331323 and 12020, that added together give a palindrome (343343).

The spelling of 33132312020 in words is "thirty-three billion, one hundred thirty-two million, three hundred twelve thousand, twenty".