1312102321311 has 4 divisors (see below), whose sum is σ = 1749469761752. Its totient is φ = 874734880872.

The previous prime is 1312102321217. The next prime is 1312102321427. The reversal of 1312102321311 is 1131232012131.

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

It is not a de Polignac number, because 1312102321311 - 2¹⁴ = 1312102304927 is a prime.

It is a super-2 number, since 2×1312102321311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312102301311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218683720216 + ... + 218683720221.

It is an arithmetic number, because the mean of its divisors is an integer number (437367440438).

Almost surely, 2^{1312102321311} is an apocalyptic number.

1312102321311 is a deficient number, since it is larger than the sum of its proper divisors (437367440441).

1312102321311 is an equidigital number, since it uses as much as digits as its factorization.

1312102321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437367440440.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1312102321311 its reverse (1131232012131), we get a palindrome (2443334333442).

The spelling of 1312102321311 in words is "one trillion, three hundred twelve billion, one hundred two million, three hundred twenty-one thousand, three hundred eleven".