1213323002320 has 160 divisors (see below), whose sum is σ = 3348323193600. Its totient is φ = 403070238720.

The previous prime is 1213323002303. The next prime is 1213323002327. The reversal of 1213323002320 is 232003233121.

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 = 1213323002291 and 1213323002300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213323002327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562981 + ... + 1656379.

It is an arithmetic number, because the mean of its divisors is an integer number (20927019960).

Almost surely, 2^{1213323002320} is an apocalyptic number.

1213323002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213323002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674161596800).

1213323002320 is an abundant number, since it is smaller than the sum of its proper divisors (2135000191280).

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

1213323002320 is a wasteful number, since it uses less digits than its factorization.

1213323002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093533 (or 1093527 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1213323002320 its reverse (232003233121), we get a palindrome (1445326235441).

The spelling of 1213323002320 in words is "one trillion, two hundred thirteen billion, three hundred twenty-three million, two thousand, three hundred twenty".