1311254664352 has 48 divisors (see below), whose sum is σ = 2626453015200. Its totient is φ = 644228847360.

The previous prime is 1311254664347. The next prime is 1311254664413. The reversal of 1311254664352 is 2534664521131.

It is a junction number, because it is equal to n+sod(n) for n = 1311254664299 and 1311254664308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130827 + ... + 4436917.

It is an arithmetic number, because the mean of its divisors is an integer number (54717771150).

Almost surely, 2^{1311254664352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311254664352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313226507600).

1311254664352 is an abundant number, since it is smaller than the sum of its proper divisors (1315198350848).

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

1311254664352 is a wasteful number, since it uses less digits than its factorization.

1311254664352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308429 (or 308421 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 1311254664352 in words is "one trillion, three hundred eleven billion, two hundred fifty-four million, six hundred sixty-four thousand, three hundred fifty-two".