1311242366361 has 8 divisors (see below), whose sum is σ = 1748375591584. Its totient is φ = 874135359360.

The previous prime is 1311242366359. The next prime is 1311242366383. The reversal of 1311242366361 is 1636632421131.

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

It is not a de Polignac number, because 1311242366361 - 2¹ = 1311242366359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311242366761) 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, 6437560 + ... + 6638121.

It is an arithmetic number, because the mean of its divisors is an integer number (218546948948).

Almost surely, 2^{1311242366361} is an apocalyptic number.

It is an amenable number.

1311242366361 is a deficient number, since it is larger than the sum of its proper divisors (437133225223).

1311242366361 is a wasteful number, since it uses less digits than its factorization.

1311242366361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13109111.

The product of its digits is 93312, while the sum is 39.

Adding to 1311242366361 its reverse (1636632421131), we get a palindrome (2947874787492).

The spelling of 1311242366361 in words is "one trillion, three hundred eleven billion, two hundred forty-two million, three hundred sixty-six thousand, three hundred sixty-one".