1213313320120 has 64 divisors (see below), whose sum is σ = 3047391642240. Its totient is φ = 430944259200.

The previous prime is 1213313320097. The next prime is 1213313320123. The reversal of 1213313320120 is 210233133121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1213313320091 and 1213313320100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213313320123) by changing a digit.

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, 32045386 + ... + 32083225.

It is an arithmetic number, because the mean of its divisors is an integer number (47615494410).

Almost surely, 2^{1213313320120} is an apocalyptic number.

1213313320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213313320120 is an abundant number, since it is smaller than the sum of its proper divisors (1834078322120).

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

1213313320120 is a wasteful number, since it uses less digits than its factorization.

1213313320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64128676 (or 64128672 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1213313320120 its reverse (210233133121), we get a palindrome (1423546453241).

The spelling of 1213313320120 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, three hundred twenty thousand, one hundred twenty".