1313322313320 has 320 divisors, whose sum is σ = 4478225875200. Its totient is φ = 345157562880.

The previous prime is 1313322313307. The next prime is 1313322313349. The reversal of 1313322313320 is 233132233131.

1313322313320 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 3 + 22 + 313 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 150244150 + ... + 150252890.

It is an arithmetic number, because the mean of its divisors is an integer number (13994455860).

Almost surely, 2^{1313322313320} is an apocalyptic number.

1313322313320 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 1313322313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2239112937600).

1313322313320 is an abundant number, since it is smaller than the sum of its proper divisors (3164903561880).

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

1313322313320 is a wasteful number, since it uses less digits than its factorization.

1313322313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9430 (or 9417 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1313322313320 its reverse (233132233131), we get a palindrome (1546454546451).

The spelling of 1313322313320 in words is "one trillion, three hundred thirteen billion, three hundred twenty-two million, three hundred thirteen thousand, three hundred twenty".