1311444534523 has 8 divisors (see below), whose sum is σ = 1347303404880. Its totient is φ = 1275607476000.

The previous prime is 1311444534503. The next prime is 1311444534529. The reversal of 1311444534523 is 3254354441131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311444534523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311444534529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5331028 + ... + 5571601.

It is an arithmetic number, because the mean of its divisors is an integer number (168412925610).

Almost surely, 2^{1311444534523} is an apocalyptic number.

1311444534523 is a deficient number, since it is larger than the sum of its proper divisors (35858870357).

1311444534523 is a wasteful number, since it uses less digits than its factorization.

1311444534523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10905917.

The product of its digits is 345600, while the sum is 40.

Adding to 1311444534523 its reverse (3254354441131), we get a palindrome (4565798975654).

The spelling of 1311444534523 in words is "one trillion, three hundred eleven billion, four hundred forty-four million, five hundred thirty-four thousand, five hundred twenty-three".