1311412344 has 128 divisors (see below), whose sum is σ = 3853025280. Its totient is φ = 367804800.

The previous prime is 1311412339. The next prime is 1311412363. The reversal of 1311412344 is 4432141131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184749 + ... + 191715.

It is an arithmetic number, because the mean of its divisors is an integer number (30101760).

Almost surely, 2^1311412344 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 1311412344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926512640).

1311412344 is an abundant number, since it is smaller than the sum of its proper divisors (2541612936).

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

1311412344 is a wasteful number, since it uses less digits than its factorization.

1311412344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7041 (or 7037 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 1311412344 is about 36213.4276753803. The cubic root of 1311412344 is about 1094.5772626435.

Adding to 1311412344 its reverse (4432141131), we get a palindrome (5743553475).

The spelling of 1311412344 in words is "one billion, three hundred eleven million, four hundred twelve thousand, three hundred forty-four".