2021131232 has 48 divisors (see below), whose sum is σ = 4194666000. Its totient is φ = 955975680.

The previous prime is 2021131159. The next prime is 2021131247. The reversal of 2021131232 is 2321311202.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 2021131232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497144 + ... + 501192.

It is an arithmetic number, because the mean of its divisors is an integer number (87388875).

Almost surely, 2^2021131232 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 2021131232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2097333000).

2021131232 is an abundant number, since it is smaller than the sum of its proper divisors (2173534768).

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

2021131232 is a wasteful number, since it uses less digits than its factorization.

2021131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4899 (or 4891 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2021131232 is about 44956.9931378868. The cubic root of 2021131232 is about 1264.3427941173.

Adding to 2021131232 its reverse (2321311202), we get a palindrome (4342442434).

The spelling of 2021131232 in words is "two billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-two".