1331187327 has 12 divisors (see below), whose sum is σ = 1923179544. Its totient is φ = 887295120.

The previous prime is 1331187313. The next prime is 1331187331. The reversal of 1331187327 is 7237811331.

1331187327 is a `hidden beast` number, since 13 + 311 + 8 + 7 + 327 = 666.

It is not a de Polignac number, because 1331187327 - 2⁴ = 1331187311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331187291 and 1331187300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331187827) 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 11 ways as a sum of consecutive naturals, for example, 57877 + ... + 77537.

It is an arithmetic number, because the mean of its divisors is an integer number (160264962).

Almost surely, 2^1331187327 is an apocalyptic number.

1331187327 is a deficient number, since it is larger than the sum of its proper divisors (591992217).

1331187327 is a wasteful number, since it uses less digits than its factorization.

1331187327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27190 (or 27187 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 1331187327 is about 36485.4399315672. The cubic root of 1331187327 is about 1100.0516028133.

Adding to 1331187327 its reverse (7237811331), we get a palindrome (8568998658).

The spelling of 1331187327 in words is "one billion, three hundred thirty-one million, one hundred eighty-seven thousand, three hundred twenty-seven".