1213310320000 has 80 divisors (see below), whose sum is σ = 3020460408900. Its totient is φ = 485324096000.

The previous prime is 1213310319943. The next prime is 1213310320063. The reversal of 1213310320000 is 230133121.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7503190 + ... + 7663189.

Almost surely, 2^{1213310320000} is an apocalyptic number.

1213310320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213310320000 is an abundant number, since it is smaller than the sum of its proper divisors (1807150088900).

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

1213310320000 is an frugal number, since it uses more digits than its factorization.

1213310320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15166413 (or 15166386 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1213310320000 its reverse (230133121), we get a palindrome (1213540453121).

The spelling of 1213310320000 in words is "one trillion, two hundred thirteen billion, three hundred ten million, three hundred twenty thousand".