13111041231421 has 24 divisors (see below), whose sum is σ = 15865680276000. Its totient is φ = 10789899259104.

The previous prime is 13111041231397. The next prime is 13111041231443. The reversal of 13111041231421 is 12413214011131.

It is not a de Polignac number, because 13111041231421 - 2⁵ = 13111041231389 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 (13111041231461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25518351 + ... + 26027068.

It is an arithmetic number, because the mean of its divisors is an integer number (661070011500).

Almost surely, 2^{13111041231421} is an apocalyptic number.

It is an amenable number.

13111041231421 is a deficient number, since it is larger than the sum of its proper divisors (2754639044579).

13111041231421 is a wasteful number, since it uses less digits than its factorization.

13111041231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51545641 (or 51545634 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 13111041231421 its reverse (12413214011131), we get a palindrome (25524255242552).

The spelling of 13111041231421 in words is "thirteen trillion, one hundred eleven billion, forty-one million, two hundred thirty-one thousand, four hundred twenty-one".