1311441356141 has 24 divisors (see below), whose sum is σ = 1583933707200. Its totient is φ = 1085330538768.

The previous prime is 1311441356129. The next prime is 1311441356171. The reversal of 1311441356141 is 1416531441131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1311441356141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311441356101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1984691 + ... + 2561616.

It is an arithmetic number, because the mean of its divisors is an integer number (65997237800).

Almost surely, 2^{1311441356141} is an apocalyptic number.

It is an amenable number.

1311441356141 is a deficient number, since it is larger than the sum of its proper divisors (272492351059).

1311441356141 is an frugal number, since it uses more digits than its factorization.

1311441356141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546386 (or 4546343 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

Adding to 1311441356141 its reverse (1416531441131), we get a palindrome (2727972797272).

The spelling of 1311441356141 in words is "one trillion, three hundred eleven billion, four hundred forty-one million, three hundred fifty-six thousand, one hundred forty-one".