1311454132445 has 4 divisors (see below), whose sum is σ = 1573744958940. Its totient is φ = 1049163305952.

The previous prime is 1311454132423. The next prime is 1311454132451. The reversal of 1311454132445 is 5442314541131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 879613267129 + 431840865316 = 937877^2 + 657146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311454132445 - 2¹⁸ = 1311453870301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311454132399 and 1311454132408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131145413240 + ... + 131145413249.

It is an arithmetic number, because the mean of its divisors is an integer number (393436239735).

Almost surely, 2^{1311454132445} is an apocalyptic number.

It is an amenable number.

1311454132445 is a deficient number, since it is larger than the sum of its proper divisors (262290826495).

1311454132445 is an equidigital number, since it uses as much as digits as its factorization.

1311454132445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262290826494.

The product of its digits is 115200, while the sum is 38.

Adding to 1311454132445 its reverse (5442314541131), we get a palindrome (6753768673576).

The spelling of 1311454132445 in words is "one trillion, three hundred eleven billion, four hundred fifty-four million, one hundred thirty-two thousand, four hundred forty-five".