1311141344 has 12 divisors (see below), whose sum is σ = 2581309584. Its totient is φ = 655570656.

The previous prime is 1311141317. The next prime is 1311141347. The reversal of 1311141344 is 4431411131.

It is a super-3 number, since 3×1311141344³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311141347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20486552 + ... + 20486615.

It is an arithmetic number, because the mean of its divisors is an integer number (215109132).

Almost surely, 2^1311141344 is an apocalyptic number.

It is an amenable number.

1311141344 is a deficient number, since it is larger than the sum of its proper divisors (1270168240).

1311141344 is an equidigital number, since it uses as much as digits as its factorization.

1311141344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40973177 (or 40973169 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 1311141344 is about 36209.6857760462. The cubic root of 1311141344 is about 1094.5018602540.

Adding to 1311141344 its reverse (4431411131), we get a palindrome (5742552475).

The spelling of 1311141344 in words is "one billion, three hundred eleven million, one hundred forty-one thousand, three hundred forty-four".