1311301421133 has 16 divisors (see below), whose sum is σ = 1968874862592. Its totient is φ = 769091742000.

The previous prime is 1311301421069. The next prime is 1311301421147. The reversal of 1311301421133 is 3311241031131.

It is not a de Polignac number, because 1311301421133 - 2⁶ = 1311301421069 is a prime.

It is a super-2 number, since 2×1311301421133² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311301421153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640908763 + ... + 640910808.

It is an arithmetic number, because the mean of its divisors is an integer number (123054678912).

Almost surely, 2^{1311301421133} is an apocalyptic number.

It is an amenable number.

1311301421133 is a deficient number, since it is larger than the sum of its proper divisors (657573441459).

1311301421133 is a wasteful number, since it uses less digits than its factorization.

1311301421133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281819616.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 1311301421133 its reverse (3311241031131), we get a palindrome (4622542452264).

The spelling of 1311301421133 in words is "one trillion, three hundred eleven billion, three hundred one million, four hundred twenty-one thousand, one hundred thirty-three".