1311012130320 has 120 divisors (see below), whose sum is σ = 4437483887616. Its totient is φ = 346850429184.

The previous prime is 1311012130291. The next prime is 1311012130327. The reversal of 1311012130320 is 230312101131.

1311012130320 is a `hidden beast` number, since 1 + 31 + 101 + 213 + 0 + 320 = 666.

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

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 = 1311012130293 and 1311012130302.

It is not an unprimeable number, because it can be changed into a prime (1311012130327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7077262 + ... + 7260141.

Almost surely, 2^{1311012130320} is an apocalyptic number.

1311012130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311012130320 is an abundant number, since it is smaller than the sum of its proper divisors (3126471757296).

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

1311012130320 is a wasteful number, since it uses less digits than its factorization.

1311012130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14337549 (or 14337540 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1311012130320 its reverse (230312101131), we get a palindrome (1541324231451).

The spelling of 1311012130320 in words is "one trillion, three hundred eleven billion, twelve million, one hundred thirty thousand, three hundred twenty".