1213201002320 has 80 divisors (see below), whose sum is σ = 2824888606272. Its totient is φ = 484559078400.

The previous prime is 1213201002319. The next prime is 1213201002373. The reversal of 1213201002320 is 232001023121.

It is a tau number, because it is divible by the number of its divisors (80).

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, 184851359 + ... + 184857921.

Almost surely, 2^{1213201002320} is an apocalyptic number.

1213201002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213201002320 is an abundant number, since it is smaller than the sum of its proper divisors (1611687603952).

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

1213201002320 is a wasteful number, since it uses less digits than its factorization.

1213201002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660 (or 9654 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1213201002320 its reverse (232001023121), we get a palindrome (1445202025441).

The spelling of 1213201002320 in words is "one trillion, two hundred thirteen billion, two hundred one million, two thousand, three hundred twenty".