1311242362664 has 32 divisors (see below), whose sum is σ = 2647748605320. Its totient is φ = 605177884416.

The previous prime is 1311242362663. The next prime is 1311242362693. The reversal of 1311242362664 is 4662632421131.

It can be written as a sum of positive squares in 4 ways, for example, as 951518309764 + 359724052900 = 975458^2 + 599770^2 .

It is not an unprimeable number, because it can be changed into a prime (1311242362663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10001762 + ... + 10132014.

Almost surely, 2^{1311242362664} is an apocalyptic number.

It is an amenable number.

1311242362664 is an abundant number, since it is smaller than the sum of its proper divisors (1336506242656).

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

1311242362664 is a wasteful number, since it uses less digits than its factorization.

1311242362664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227069 (or 227065 counting only the distinct ones).

The product of its digits is 248832, while the sum is 41.

Adding to 1311242362664 its reverse (4662632421131), we get a palindrome (5973874783795).

The spelling of 1311242362664 in words is "one trillion, three hundred eleven billion, two hundred forty-two million, three hundred sixty-two thousand, six hundred sixty-four".