1312103301331 has 4 divisors (see below), whose sum is σ = 1314131282352. Its totient is φ = 1310075320312.

The previous prime is 1312103301323. The next prime is 1312103301343. The reversal of 1312103301331 is 1331033012131.

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 1312103301331 - 2³ = 1312103301323 is a prime.

It is a super-2 number, since 2×1312103301331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312103301631) 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, 1013989540 + ... + 1013990833.

It is an arithmetic number, because the mean of its divisors is an integer number (328532820588).

Almost surely, 2^{1312103301331} is an apocalyptic number.

1312103301331 is a deficient number, since it is larger than the sum of its proper divisors (2027981021).

1312103301331 is an equidigital number, since it uses as much as digits as its factorization.

1312103301331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027981020.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1312103301331 its reverse (1331033012131), we get a palindrome (2643136313462).

The spelling of 1312103301331 in words is "one trillion, three hundred twelve billion, one hundred three million, three hundred one thousand, three hundred thirty-one".