1310323123320 has 64 divisors (see below), whose sum is σ = 3959662626720. Its totient is φ = 346868987904.

The previous prime is 1310323123297. The next prime is 1310323123321. The reversal of 1310323123320 is 233213230131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310323123321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39835237 + ... + 39868116.

Almost surely, 2^{1310323123320} is an apocalyptic number.

1310323123320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310323123320 is an abundant number, since it is smaller than the sum of its proper divisors (2649339503400).

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

1310323123320 is a wasteful number, since it uses less digits than its factorization.

1310323123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79703504 (or 79703500 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1310323123320 its reverse (233213230131), we get a palindrome (1543536353451).

The spelling of 1310323123320 in words is "one trillion, three hundred ten billion, three hundred twenty-three million, one hundred twenty-three thousand, three hundred twenty".