1213333304320 has 44 divisors (see below), whose sum is σ = 2910578067684. Its totient is φ = 485333319680.

The previous prime is 1213333304291. The next prime is 1213333304347. The reversal of 1213333304320 is 234033333121.

It can be written as a sum of positive squares in 2 ways, for example, as 688554763264 + 524778541056 = 829792^2 + 724416^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118484461 + ... + 118494700.

Almost surely, 2^{1213333304320} is an apocalyptic number.

1213333304320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213333304320 is an abundant number, since it is smaller than the sum of its proper divisors (1697244763364).

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

1213333304320 is an equidigital number, since it uses as much as digits as its factorization.

1213333304320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236979186 (or 236979168 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 1213333304320 its reverse (234033333121), we get a palindrome (1447366637441).

It can be divided in two parts, 121333 and 3304320, that added together give a triangular number (3425653 = T₂₆₁₇).

The spelling of 1213333304320 in words is "one trillion, two hundred thirteen billion, three hundred thirty-three million, three hundred four thousand, three hundred twenty".