1312313113311 has 4 divisors (see below), whose sum is σ = 1749750817752. Its totient is φ = 874875408872.

The previous prime is 1312313113253. The next prime is 1312313113403. The reversal of 1312313113311 is 1133113132131.

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 1312313113311 - 2⁷ = 1312313113183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312313113211) 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, 218718852216 + ... + 218718852221.

It is an arithmetic number, because the mean of its divisors is an integer number (437437704438).

Almost surely, 2^{1312313113311} is an apocalyptic number.

1312313113311 is a deficient number, since it is larger than the sum of its proper divisors (437437704441).

1312313113311 is an equidigital number, since it uses as much as digits as its factorization.

1312313113311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437437704440.

The product of its digits is 486, while the sum is 24.

Adding to 1312313113311 its reverse (1133113132131), we get a palindrome (2445426245442).

The spelling of 1312313113311 in words is "one trillion, three hundred twelve billion, three hundred thirteen million, one hundred thirteen thousand, three hundred eleven".