321204104344340 has 24 divisors (see below), whose sum is σ = 770889850426752. Its totient is φ = 110127121489440.

The previous prime is 321204104344303. The next prime is 321204104344427. The reversal of 321204104344340 is 43443401402123.

It is a super-2 number, since 2×321204104344340² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 321204104344340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147157515376 + ... + 1147157515655.

It is an arithmetic number, because the mean of its divisors is an integer number (32120410434448).

Almost surely, 2^{321204104344340} is an apocalyptic number.

It is an amenable number.

321204104344340 is an abundant number, since it is smaller than the sum of its proper divisors (449685746082412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321204104344340 is a wasteful number, since it uses less digits than its factorization.

321204104344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294315031047 (or 2294315031045 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 321204104344340 its reverse (43443401402123), we get a palindrome (364647505746463).

The spelling of 321204104344340 in words is "three hundred twenty-one trillion, two hundred four billion, one hundred four million, three hundred forty-four thousand, three hundred forty".