1312103002320 has 120 divisors (see below), whose sum is σ = 4807068301152. Its totient is φ = 318085574400.

The previous prime is 1312103002297. The next prime is 1312103002351. The reversal of 1312103002320 is 232003012131.

1312103002320 is a `hidden beast` number, since 1 + 31 + 2 + 10 + 300 + 2 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×1312103002320² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1312103002293 and 1312103002302.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 82826866 + ... + 82842705.

Almost surely, 2^{1312103002320} is an apocalyptic number.

1312103002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312103002320 is an abundant number, since it is smaller than the sum of its proper divisors (3494965298832).

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

1312103002320 is a wasteful number, since it uses less digits than its factorization.

1312103002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165669601 (or 165669592 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1312103002320 its reverse (232003012131), we get a palindrome (1544106014451).

The spelling of 1312103002320 in words is "one trillion, three hundred twelve billion, one hundred three million, two thousand, three hundred twenty".