20432413213 has 4 divisors (see below), whose sum is σ = 20433906880. Its totient is φ = 20430919548.

The previous prime is 20432413207. The next prime is 20432413223. The reversal of 20432413213 is 31231423402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20432413213 - 2¹⁷ = 20432282141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432413223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726123 + ... + 753736.

It is an arithmetic number, because the mean of its divisors is an integer number (5108476720).

Almost surely, 2^20432413213 is an apocalyptic number.

It is an amenable number.

20432413213 is a deficient number, since it is larger than the sum of its proper divisors (1493667).

20432413213 is a wasteful number, since it uses less digits than its factorization.

20432413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493666.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20432413213 its reverse (31231423402), we get a palindrome (51663836615).

The spelling of 20432413213 in words is "twenty billion, four hundred thirty-two million, four hundred thirteen thousand, two hundred thirteen".