13201434004021 has 4 divisors (see below), whose sum is σ = 13977988945452. Its totient is φ = 12424879062592.

The previous prime is 13201434003997. The next prime is 13201434004037. The reversal of 13201434004021 is 12040043410231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5210856252900 + 7990577751121 = 2282730^2 + 2826761^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13201434004021 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 (13201434004081) 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, 388277470690 + ... + 388277470723.

It is an arithmetic number, because the mean of its divisors is an integer number (3494497236363).

Almost surely, 2^{13201434004021} is an apocalyptic number.

It is an amenable number.

13201434004021 is a deficient number, since it is larger than the sum of its proper divisors (776554941431).

13201434004021 is an equidigital number, since it uses as much as digits as its factorization.

13201434004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776554941430.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13201434004021 its reverse (12040043410231), we get a palindrome (25241477414252).

The spelling of 13201434004021 in words is "thirteen trillion, two hundred one billion, four hundred thirty-four million, four thousand, twenty-one".