321341743403 has 4 divisors (see below), whose sum is σ = 338254466760. Its totient is φ = 304429020048.

The previous prime is 321341743391. The next prime is 321341743409. The reversal of 321341743403 is 304347143123.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 321341743403 - 2³⁶ = 252622266667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321341743409) 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, 8456361650 + ... + 8456361687.

It is an arithmetic number, because the mean of its divisors is an integer number (84563616690).

Almost surely, 2^321341743403 is an apocalyptic number.

321341743403 is a deficient number, since it is larger than the sum of its proper divisors (16912723357).

321341743403 is a wasteful number, since it uses less digits than its factorization.

321341743403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16912723356.

The product of its (nonzero) digits is 72576, while the sum is 35.

Adding to 321341743403 its reverse (304347143123), we get a palindrome (625688886526).

The spelling of 321341743403 in words is "three hundred twenty-one billion, three hundred forty-one million, seven hundred forty-three thousand, four hundred three".