13432503140021 has 32 divisors (see below), whose sum is σ = 16019503104000. Its totient is φ = 11019868896960.

The previous prime is 13432503139999. The next prime is 13432503140051. The reversal of 13432503140021 is 12004130523431.

It is a de Polignac number, because none of the positive numbers 2^k-13432503140021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13432503140051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10334096 + ... + 11561078.

It is an arithmetic number, because the mean of its divisors is an integer number (500609472000).

Almost surely, 2^{13432503140021} is an apocalyptic number.

It is an amenable number.

13432503140021 is a deficient number, since it is larger than the sum of its proper divisors (2586999963979).

13432503140021 is a wasteful number, since it uses less digits than its factorization.

13432503140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227489.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13432503140021 its reverse (12004130523431), we get a palindrome (25436633663452).

The spelling of 13432503140021 in words is "thirteen trillion, four hundred thirty-two billion, five hundred three million, one hundred forty thousand, twenty-one".