20201212432 has 40 divisors (see below), whose sum is σ = 40905774720. Its totient is φ = 9646264320.

The previous prime is 20201212417. The next prime is 20201212439. The reversal of 20201212432 is 23421210202.

It is not an unprimeable number, because it can be changed into a prime (20201212439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193069 + ... + 278707.

It is an arithmetic number, because the mean of its divisors is an integer number (1022644368).

Almost surely, 2^20201212432 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 20201212432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20452887360).

20201212432 is an abundant number, since it is smaller than the sum of its proper divisors (20704562288).

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

20201212432 is a wasteful number, since it uses less digits than its factorization.

20201212432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86311 (or 86305 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20201212432 its reverse (23421210202), we get a palindrome (43622422634).

The spelling of 20201212432 in words is "twenty billion, two hundred one million, two hundred twelve thousand, four hundred thirty-two".