20432243316 has 12 divisors (see below), whose sum is σ = 47675234432. Its totient is φ = 6810747768.

The previous prime is 20432243311. The next prime is 20432243317. The reversal of 20432243316 is 61334223402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432243311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851343460 + ... + 851343483.

Almost surely, 2^20432243316 is an apocalyptic number.

It is an amenable number.

20432243316 is an abundant number, since it is smaller than the sum of its proper divisors (27242991116).

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

20432243316 is a wasteful number, since it uses less digits than its factorization.

20432243316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702686950 (or 1702686948 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20432243316 its reverse (61334223402), we get a palindrome (81766466718).

The spelling of 20432243316 in words is "twenty billion, four hundred thirty-two million, two hundred forty-three thousand, three hundred sixteen".