1311312133323 has 10 divisors (see below), whose sum is σ = 1958873680764. Its totient is φ = 874208088828.

The previous prime is 1311312133303. The next prime is 1311312133343. The reversal of 1311312133323 is 3233312131131.

1311312133323 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 312 + 13 + 332 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1311312133303) and next prime (1311312133343).

It is not a de Polignac number, because 1311312133323 - 2⁸ = 1311312133067 is a prime.

It is a super-2 number, since 2×1311312133323² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1311312133303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8094519261 + ... + 8094519422.

Almost surely, 2^{1311312133323} is an apocalyptic number.

1311312133323 is a deficient number, since it is larger than the sum of its proper divisors (647561547441).

1311312133323 is an equidigital number, since it uses as much as digits as its factorization.

1311312133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16189038695 (or 16189038686 counting only the distinct ones).

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

Adding to 1311312133323 its reverse (3233312131131), we get a palindrome (4544624264454).

The spelling of 1311312133323 in words is "one trillion, three hundred eleven billion, three hundred twelve million, one hundred thirty-three thousand, three hundred twenty-three".