321342143303 has 4 divisors (see below), whose sum is σ = 321343655880. Its totient is φ = 321340630728.

The previous prime is 321342143299. The next prime is 321342143347. The reversal of 321342143303 is 303341243123.

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 321342143303 - 2² = 321342143299 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 (321342143203) 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, 372800 + ... + 884117.

It is an arithmetic number, because the mean of its divisors is an integer number (80335913970).

Almost surely, 2^321342143303 is an apocalyptic number.

321342143303 is a deficient number, since it is larger than the sum of its proper divisors (1512577).

321342143303 is a wasteful number, since it uses less digits than its factorization.

321342143303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512576.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 321342143303 its reverse (303341243123), we get a palindrome (624683386426).

The spelling of 321342143303 in words is "three hundred twenty-one billion, three hundred forty-two million, one hundred forty-three thousand, three hundred three".