321243341013 has 40 divisors (see below), whose sum is σ = 548598148032. Its totient is φ = 183513553344.

The previous prime is 321243340987. The next prime is 321243341063. The reversal of 321243341013 is 310143342123.

It is a happy number.

321243341013 is a `hidden beast` number, since 3 + 2 + 1 + 243 + 3 + 410 + 1 + 3 = 666.

It is not a de Polignac number, because 321243341013 - 2¹⁸ = 321243078869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321243341063) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1884081 + ... + 2047497.

Almost surely, 2^321243341013 is an apocalyptic number.

It is an amenable number.

321243341013 is a deficient number, since it is larger than the sum of its proper divisors (227354807019).

321243341013 is a wasteful number, since it uses less digits than its factorization.

321243341013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166903 (or 166894 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 321243341013 its reverse (310143342123), we get a palindrome (631386683136).

The spelling of 321243341013 in words is "three hundred twenty-one billion, two hundred forty-three million, three hundred forty-one thousand, thirteen".