1311101321031 has 12 divisors (see below), whose sum is σ = 1954903762240. Its totient is φ = 845871819840.

The previous prime is 1311101321021. The next prime is 1311101321039. The reversal of 1311101321031 is 1301231011131.

1311101321031 is a `hidden beast` number, since 1 + 311 + 1 + 0 + 1 + 321 + 0 + 31 = 666.

It is not a de Polignac number, because 1311101321031 - 2²¹ = 1311099223879 is a prime.

It is a super-2 number, since 2×1311101321031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311101320995 and 1311101321013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311101321039) 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 11 ways as a sum of consecutive naturals, for example, 2349643666 + ... + 2349644223.

Almost surely, 2^{1311101321031} is an apocalyptic number.

1311101321031 is a deficient number, since it is larger than the sum of its proper divisors (643802441209).

1311101321031 is a wasteful number, since it uses less digits than its factorization.

1311101321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699287926 (or 4699287923 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1311101321031 its reverse (1301231011131), we get a palindrome (2612332332162).

The spelling of 1311101321031 in words is "one trillion, three hundred eleven billion, one hundred one million, three hundred twenty-one thousand, thirty-one".