13423511020121 has 8 divisors (see below), whose sum is σ = 13886530867080. Its totient is φ = 12960500516992.

The previous prime is 13423511020099. The next prime is 13423511020163. The reversal of 13423511020121 is 12102011532431.

13423511020121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10365083665225 + 3058427354896 = 3219485^2 + 1748836^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13423511020121 - 2¹⁴ = 13423511003737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13423511020421) 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, 651611 + ... + 5222223.

It is an arithmetic number, because the mean of its divisors is an integer number (1735816358385).

Almost surely, 2^{13423511020121} is an apocalyptic number.

It is an amenable number.

13423511020121 is a deficient number, since it is larger than the sum of its proper divisors (463019846959).

13423511020121 is a wasteful number, since it uses less digits than its factorization.

13423511020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671915.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 13423511020121 its reverse (12102011532431), we get a palindrome (25525522552552).

The spelling of 13423511020121 in words is "thirteen trillion, four hundred twenty-three billion, five hundred eleven million, twenty thousand, one hundred twenty-one".