20104432513 has 8 divisors (see below), whose sum is σ = 23086429920. Its totient is φ = 17314822080.

The previous prime is 20104432507. The next prime is 20104432541. The reversal of 20104432513 is 31523440102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20104432513 - 2⁹ = 20104432001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104432013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48096520 + ... + 48096937.

It is an arithmetic number, because the mean of its divisors is an integer number (2885803740).

Almost surely, 2^20104432513 is an apocalyptic number.

It is an amenable number.

20104432513 is a deficient number, since it is larger than the sum of its proper divisors (2981997407).

20104432513 is a wasteful number, since it uses less digits than its factorization.

20104432513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96193487.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20104432513 its reverse (31523440102), we get a palindrome (51627872615).

The spelling of 20104432513 in words is "twenty billion, one hundred four million, four hundred thirty-two thousand, five hundred thirteen".