321142243503 has 8 divisors (see below), whose sum is σ = 428213220400. Its totient is φ = 214083047808.

The previous prime is 321142243483. The next prime is 321142243549. The reversal of 321142243503 is 305342241123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321142243503 - 2⁶ = 321142243439 is a prime.

It is a super-2 number, since 2×321142243503² (a number of 24 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 (321142242503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2881498 + ... + 2990871.

It is an arithmetic number, because the mean of its divisors is an integer number (53526652550).

Almost surely, 2^321142243503 is an apocalyptic number.

321142243503 is a deficient number, since it is larger than the sum of its proper divisors (107070976897).

321142243503 is a wasteful number, since it uses less digits than its factorization.

321142243503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5890601.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 321142243503 its reverse (305342241123), we get a palindrome (626484484626).

The spelling of 321142243503 in words is "three hundred twenty-one billion, one hundred forty-two million, two hundred forty-three thousand, five hundred three".