1311440334 has 8 divisors (see below), whose sum is σ = 2622880680. Its totient is φ = 437146776.

The previous prime is 1311440329. The next prime is 1311440341. The reversal of 1311440334 is 4330441131.

It is a sphenic number, since it is the product of 3 distinct primes.

1311440334 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109286689 + ... + 109286700.

It is an arithmetic number, because the mean of its divisors is an integer number (327860085).

Almost surely, 2^1311440334 is an apocalyptic number.

1311440334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1311440334 is a wasteful number, since it uses less digits than its factorization.

1311440334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218573394.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1311440334 is about 36213.8141321789. The cubic root of 1311440334 is about 1094.5850499221.

Adding to 1311440334 its reverse (4330441131), we get a palindrome (5641881465).

The spelling of 1311440334 in words is "one billion, three hundred eleven million, four hundred forty thousand, three hundred thirty-four".