321224432340020 has 24 divisors (see below), whose sum is σ = 735895972270368. Its totient is φ = 116808884487200.

The previous prime is 321224432339983. The next prime is 321224432340037. The reversal of 321224432340020 is 20043234422123.

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, 730055527826 + ... + 730055528265.

It is an arithmetic number, because the mean of its divisors is an integer number (30662332177932).

Almost surely, 2^{321224432340020} is an apocalyptic number.

It is an amenable number.

321224432340020 is an abundant number, since it is smaller than the sum of its proper divisors (414671539930348).

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

321224432340020 is a wasteful number, since it uses less digits than its factorization.

321224432340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460111056111 (or 1460111056109 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 321224432340020 its reverse (20043234422123), we get a palindrome (341267666762143).

The spelling of 321224432340020 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, four hundred thirty-two million, three hundred forty thousand, twenty".