13130444513421 has 6 divisors (see below), whose sum is σ = 18966197630510. Its totient is φ = 8753629675608.

The previous prime is 13130444513393. The next prime is 13130444513429. The reversal of 13130444513421 is 12431544403131.

13130444513421 is a `hidden beast` number, since 1 + 3 + 1 + 304 + 4 + 4 + 5 + 1 + 342 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13086928467396 + 43516046025 = 3617586^2 + 208605^2 .

It is not a de Polignac number, because 13130444513421 - 2⁷ = 13130444513293 is a prime.

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 (13130444513429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 729469139626 + ... + 729469139643.

Almost surely, 2^{13130444513421} is an apocalyptic number.

It is an amenable number.

13130444513421 is a deficient number, since it is larger than the sum of its proper divisors (5835753117089).

13130444513421 is a wasteful number, since it uses less digits than its factorization.

13130444513421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458938279275 (or 1458938279272 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

Adding to 13130444513421 its reverse (12431544403131), we get a palindrome (25561988916552).

The spelling of 13130444513421 in words is "thirteen trillion, one hundred thirty billion, four hundred forty-four million, five hundred thirteen thousand, four hundred twenty-one".