323212355540 has 48 divisors (see below), whose sum is σ = 686344300992. Its totient is φ = 127842064896.

The previous prime is 323212355539. The next prime is 323212355569. The reversal of 323212355540 is 45553212323.

It is a self number, because there is not a number n which added to its sum of digits gives 323212355540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1032524 + ... + 1308636.

It is an arithmetic number, because the mean of its divisors is an integer number (14298839604).

Almost surely, 2^323212355540 is an apocalyptic number.

It is an amenable number.

323212355540 is an abundant number, since it is smaller than the sum of its proper divisors (363131945452).

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

323212355540 is a wasteful number, since it uses less digits than its factorization.

323212355540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276776 (or 276774 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 323212355540 its reverse (45553212323), we get a palindrome (368765567863).

The spelling of 323212355540 in words is "three hundred twenty-three billion, two hundred twelve million, three hundred fifty-five thousand, five hundred forty".