1312323331320 has 96 divisors (see below), whose sum is σ = 4364238106800. Its totient is φ = 341814445056.

The previous prime is 1312323331313. The next prime is 1312323331357. The reversal of 1312323331320 is 231333232131.

1312323331320 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 3 + 2 + 3 + 331 + 320 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42372225 + ... + 42403184.

Almost surely, 2^{1312323331320} is an apocalyptic number.

1312323331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312323331320 is an abundant number, since it is smaller than the sum of its proper divisors (3051914775480).

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

1312323331320 is a wasteful number, since it uses less digits than its factorization.

1312323331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84775469 (or 84775462 counting only the distinct ones).

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

Adding to 1312323331320 its reverse (231333232131), we get a palindrome (1543656563451).

The spelling of 1312323331320 in words is "one trillion, three hundred twelve billion, three hundred twenty-three million, three hundred thirty-one thousand, three hundred twenty".