14104042431221 has 4 divisors (see below), whose sum is σ = 14105667891372. Its totient is φ = 14102416971072.

The previous prime is 14104042431211. The next prime is 14104042431253. The reversal of 14104042431221 is 12213424040141.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1051935358321 + 13052107072900 = 1025639^2 + 3612770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14104042431221 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 (14104042431211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812717060 + ... + 812734413.

It is an arithmetic number, because the mean of its divisors is an integer number (3526416972843).

Almost surely, 2^{14104042431221} is an apocalyptic number.

It is an amenable number.

14104042431221 is a deficient number, since it is larger than the sum of its proper divisors (1625460151).

14104042431221 is an equidigital number, since it uses as much as digits as its factorization.

14104042431221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625460150.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 14104042431221 its reverse (12213424040141), we get a palindrome (26317466471362).

The spelling of 14104042431221 in words is "fourteen trillion, one hundred four billion, forty-two million, four hundred thirty-one thousand, two hundred twenty-one".