1323200230440 has 64 divisors (see below), whose sum is σ = 4330473485760. Its totient is φ = 320775813120.

The previous prime is 1323200230439. The next prime is 1323200230459. The reversal of 1323200230440 is 440320023231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1323200230440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501210889 + ... + 501213528.

It is an arithmetic number, because the mean of its divisors is an integer number (67663648215).

Almost surely, 2^{1323200230440} is an apocalyptic number.

1323200230440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323200230440 is an abundant number, since it is smaller than the sum of its proper divisors (3007273255320).

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

1323200230440 is a wasteful number, since it uses less digits than its factorization.

1323200230440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002424442 (or 1002424438 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 1323200230440 its reverse (440320023231), we get a palindrome (1763520253671).

The spelling of 1323200230440 in words is "one trillion, three hundred twenty-three billion, two hundred million, two hundred thirty thousand, four hundred forty".