1312541105131 has 4 divisors (see below), whose sum is σ = 1334787564600. Its totient is φ = 1290294645664.

The previous prime is 1312541105123. The next prime is 1312541105153. The reversal of 1312541105131 is 1315011452131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1312541105131 - 2³ = 1312541105123 is a prime.

It is a super-2 number, since 2×1312541105131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312541105131.

It is not an unprimeable number, because it can be changed into a prime (1312541105231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11123229646 + ... + 11123229763.

It is an arithmetic number, because the mean of its divisors is an integer number (333696891150).

Almost surely, 2^{1312541105131} is an apocalyptic number.

1312541105131 is a deficient number, since it is larger than the sum of its proper divisors (22246459469).

1312541105131 is an equidigital number, since it uses as much as digits as its factorization.

1312541105131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22246459468.

The product of its (nonzero) digits is 1800, while the sum is 28.

Adding to 1312541105131 its reverse (1315011452131), we get a palindrome (2627552557262).

The spelling of 1312541105131 in words is "one trillion, three hundred twelve billion, five hundred forty-one million, one hundred five thousand, one hundred thirty-one".