321134220340 has 12 divisors (see below), whose sum is σ = 674381862756. Its totient is φ = 128453688128.

The previous prime is 321134220331. The next prime is 321134220347. The reversal of 321134220340 is 43022431123.

It can be written as a sum of positive squares in 2 ways, for example, as 176889218724 + 144245001616 = 420582^2 + 379796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321134220347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8028355489 + ... + 8028355528.

It is an arithmetic number, because the mean of its divisors is an integer number (56198488563).

Almost surely, 2^321134220340 is an apocalyptic number.

It is an amenable number.

321134220340 is an abundant number, since it is smaller than the sum of its proper divisors (353247642416).

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

321134220340 is a wasteful number, since it uses less digits than its factorization.

321134220340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16056711026 (or 16056711024 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 321134220340 its reverse (43022431123), we get a palindrome (364156651463).

The spelling of 321134220340 in words is "three hundred twenty-one billion, one hundred thirty-four million, two hundred twenty thousand, three hundred forty".