1311441442365 has 32 divisors (see below), whose sum is σ = 2106746841600. Its totient is φ = 696623639040.

The previous prime is 1311441442361. The next prime is 1311441442477. The reversal of 1311441442365 is 5632441441131.

It is not a de Polignac number, because 1311441442365 - 2² = 1311441442361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311441442361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12586201 + ... + 12689969.

It is an arithmetic number, because the mean of its divisors is an integer number (65835838800).

Almost surely, 2^{1311441442365} is an apocalyptic number.

1311441442365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311441442365 is a deficient number, since it is larger than the sum of its proper divisors (795305399235).

1311441442365 is a wasteful number, since it uses less digits than its factorization.

1311441442365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107157.

The product of its digits is 138240, while the sum is 39.

Adding to 1311441442365 its reverse (5632441441131), we get a palindrome (6943882883496).

The spelling of 1311441442365 in words is "one trillion, three hundred eleven billion, four hundred forty-one million, four hundred forty-two thousand, three hundred sixty-five".