1312311233313 has 24 divisors (see below), whose sum is σ = 1939712325408. Its totient is φ = 854497913472.

The previous prime is 1312311233309. The next prime is 1312311233323. The reversal of 1312311233313 is 3133321132131.

1312311233313 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 311 + 2 + 33 + 313 = 666.

It is not a de Polignac number, because 1312311233313 - 2² = 1312311233309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312311233323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17372281 + ... + 17447657.

It is an arithmetic number, because the mean of its divisors is an integer number (80821346892).

Almost surely, 2^{1312311233313} is an apocalyptic number.

It is an amenable number.

1312311233313 is a deficient number, since it is larger than the sum of its proper divisors (627401092095).

1312311233313 is a wasteful number, since it uses less digits than its factorization.

1312311233313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120413 (or 120410 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

Adding to 1312311233313 its reverse (3133321132131), we get a palindrome (4445632365444).

The spelling of 1312311233313 in words is "one trillion, three hundred twelve billion, three hundred eleven million, two hundred thirty-three thousand, three hundred thirteen".