13424041023421 has 8 divisors (see below), whose sum is σ = 15356787388544. Its totient is φ = 11495051213040.

The previous prime is 13424041023383. The next prime is 13424041023433. The reversal of 13424041023421 is 12432014042431.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13424041023421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424041023451) 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, 939131025 + ... + 939145318.

It is an arithmetic number, because the mean of its divisors is an integer number (1919598423568).

Almost surely, 2^{13424041023421} is an apocalyptic number.

It is an amenable number.

13424041023421 is a deficient number, since it is larger than the sum of its proper divisors (1932746365123).

13424041023421 is a wasteful number, since it uses less digits than its factorization.

13424041023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878277371.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 13424041023421 its reverse (12432014042431), we get a palindrome (25856055065852).

The spelling of 13424041023421 in words is "thirteen trillion, four hundred twenty-four billion, forty-one million, twenty-three thousand, four hundred twenty-one".