13042243223421 has 8 divisors (see below), whose sum is σ = 17390030642400. Its totient is φ = 8694642310032.

The previous prime is 13042243223419. The next prime is 13042243223423. The reversal of 13042243223421 is 12432234224031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13042243223419) and next prime (13042243223423).

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

It is not a de Polignac number, because 13042243223421 - 2¹ = 13042243223419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042243223423) 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, 46463146 + ... + 46743003.

It is an arithmetic number, because the mean of its divisors is an integer number (2173753830300).

Almost surely, 2^{13042243223421} is an apocalyptic number.

It is an amenable number.

13042243223421 is a deficient number, since it is larger than the sum of its proper divisors (4347787418979).

13042243223421 is an equidigital number, since it uses as much as digits as its factorization.

13042243223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93252795.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 13042243223421 its reverse (12432234224031), we get a palindrome (25474477447452).

The spelling of 13042243223421 in words is "thirteen trillion, forty-two billion, two hundred forty-three million, two hundred twenty-three thousand, four hundred twenty-one".