1331323112331 has 12 divisors (see below), whose sum is σ = 1923064242840. Its totient is φ = 887529371040.

The previous prime is 1331323112323. The next prime is 1331323112347. The reversal of 1331323112331 is 1332113231331.

1331323112331 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 323 + 1 + 1 + 2 + 331 = 666.

It is not a de Polignac number, because 1331323112331 - 2³ = 1331323112323 is a prime.

It is a super-2 number, since 2×1331323112331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331323112295 and 1331323112304.

It is not an unprimeable number, because it can be changed into a prime (1331323112831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172565 + ... + 2009366.

It is an arithmetic number, because the mean of its divisors is an integer number (160255353570).

Almost surely, 2^{1331323112331} is an apocalyptic number.

1331323112331 is a deficient number, since it is larger than the sum of its proper divisors (591741130509).

1331323112331 is a wasteful number, since it uses less digits than its factorization.

1331323112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228426 (or 3228423 counting only the distinct ones).

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

Adding to 1331323112331 its reverse (1332113231331), we get a palindrome (2663436343662).

The spelling of 1331323112331 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-three million, one hundred twelve thousand, three hundred thirty-one".