1312000320120 has 64 divisors (see below), whose sum is σ = 4498286814720. Its totient is φ = 299885787264.

The previous prime is 1312000320119. The next prime is 1312000320139. The reversal of 1312000320120 is 210230002131.

It is a super-3 number, since 3×1312000320120³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1312000320120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 780951732 + ... + 780953411.

It is an arithmetic number, because the mean of its divisors is an integer number (70285731480).

Almost surely, 2^{1312000320120} is an apocalyptic number.

1312000320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312000320120 is an abundant number, since it is smaller than the sum of its proper divisors (3186286494600).

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

1312000320120 is a wasteful number, since it uses less digits than its factorization.

1312000320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561905164 (or 1561905160 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1312000320120 its reverse (210230002131), we get a palindrome (1522230322251).

The spelling of 1312000320120 in words is "one trillion, three hundred twelve billion, three hundred twenty thousand, one hundred twenty".