321434443144013 has 4 divisors (see below), whose sum is σ = 324555165893088. Its totient is φ = 318313720394940.

The previous prime is 321434443143943. The next prime is 321434443144033. The reversal of 321434443144013 is 310441344434123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321434443144013 - 2³⁶ = 321365723667277 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 (321434443144033) 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, 1560361374383 + ... + 1560361374588.

It is an arithmetic number, because the mean of its divisors is an integer number (81138791473272).

Almost surely, 2^{321434443144013} is an apocalyptic number.

It is an amenable number.

321434443144013 is a deficient number, since it is larger than the sum of its proper divisors (3120722749075).

321434443144013 is a wasteful number, since it uses less digits than its factorization.

321434443144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120722749074.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 321434443144013 its reverse (310441344434123), we get a palindrome (631875787578136).

The spelling of 321434443144013 in words is "three hundred twenty-one trillion, four hundred thirty-four billion, four hundred forty-three million, one hundred forty-four thousand, thirteen".