20201213232 has 120 divisors (see below), whose sum is σ = 58123980720. Its totient is φ = 6544903680.

The previous prime is 20201213189. The next prime is 20201213267. The reversal of 20201213232 is 23231210202.

20201213232 is a `hidden beast` number, since 20 + 201 + 213 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 8635519 + ... + 8637857.

It is an arithmetic number, because the mean of its divisors is an integer number (484366506).

Almost surely, 2^20201213232 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 20201213232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29061990360).

20201213232 is an abundant number, since it is smaller than the sum of its proper divisors (37922767488).

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

20201213232 is a wasteful number, since it uses less digits than its factorization.

20201213232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20201213232 its reverse (23231210202), we get a palindrome (43432423434).

The spelling of 20201213232 in words is "twenty billion, two hundred one million, two hundred thirteen thousand, two hundred thirty-two".