321343104013 has 4 divisors (see below), whose sum is σ = 321670005408. Its totient is φ = 321016202620.

The previous prime is 321343104007. The next prime is 321343104059. The reversal of 321343104013 is 310401343123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310401343123 = 117413 ⋅2643671.

It is a cyclic number.

It is not a de Polignac number, because 321343104013 - 2³⁷ = 183904150541 is a prime.

It is a super-3 number, since 3×321343104013³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321343104913) 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, 163449223 + ... + 163451188.

It is an arithmetic number, because the mean of its divisors is an integer number (80417501352).

Almost surely, 2^321343104013 is an apocalyptic number.

It is an amenable number.

321343104013 is a deficient number, since it is larger than the sum of its proper divisors (326901395).

321343104013 is an equidigital number, since it uses as much as digits as its factorization.

321343104013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326901394.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 321343104013 its reverse (310401343123), we get a palindrome (631744447136).

The spelling of 321343104013 in words is "three hundred twenty-one billion, three hundred forty-three million, one hundred four thousand, thirteen".