1312273113355 has 4 divisors (see below), whose sum is σ = 1574727736032. Its totient is φ = 1049818490680.

The previous prime is 1312273113353. The next prime is 1312273113391. The reversal of 1312273113355 is 5533113722131.

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

It is not a de Polignac number, because 1312273113355 - 2¹ = 1312273113353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312273113353) 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, 131227311331 + ... + 131227311340.

It is an arithmetic number, because the mean of its divisors is an integer number (393681934008).

Almost surely, 2^{1312273113355} is an apocalyptic number.

1312273113355 is a deficient number, since it is larger than the sum of its proper divisors (262454622677).

1312273113355 is an equidigital number, since it uses as much as digits as its factorization.

1312273113355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262454622676.

The product of its digits is 56700, while the sum is 37.

Adding to 1312273113355 its reverse (5533113722131), we get a palindrome (6845386835486).

The spelling of 1312273113355 in words is "one trillion, three hundred twelve billion, two hundred seventy-three million, one hundred thirteen thousand, three hundred fifty-five".