321424310342303 has 4 divisors (see below), whose sum is σ = 367342068962640. Its totient is φ = 275506551721968.

The previous prime is 321424310342243. The next prime is 321424310342323. The reversal of 321424310342303 is 303243013424123.

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

It is a de Polignac number, because none of the positive numbers 2^k-321424310342303 is a prime.

It is a super-2 number, since 2×321424310342303² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321424310342323) 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, 22958879310158 + ... + 22958879310171.

It is an arithmetic number, because the mean of its divisors is an integer number (91835517240660).

Almost surely, 2^{321424310342303} is an apocalyptic number.

321424310342303 is a deficient number, since it is larger than the sum of its proper divisors (45917758620337).

321424310342303 is an equidigital number, since it uses as much as digits as its factorization.

321424310342303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45917758620336.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 321424310342303 its reverse (303243013424123), we get a palindrome (624667323766426).

The spelling of 321424310342303 in words is "three hundred twenty-one trillion, four hundred twenty-four billion, three hundred ten million, three hundred forty-two thousand, three hundred three".