1327611231 has 12 divisors (see below), whose sum is σ = 1946283352. Its totient is φ = 871863696.

The previous prime is 1327611227. The next prime is 1327611269. The reversal of 1327611231 is 1321167231.

1327611231 is a `hidden beast` number, since 1 + 3 + 27 + 611 + 23 + 1 = 666.

It is not a de Polignac number, because 1327611231 - 2² = 1327611227 is a prime.

It is a super-2 number, since 2×1327611231² = 3525103161354670722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1327611195 and 1327611204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327611281) 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, 1100236 + ... + 1101441.

Almost surely, 2^1327611231 is an apocalyptic number.

1327611231 is a deficient number, since it is larger than the sum of its proper divisors (618672121).

1327611231 is a wasteful number, since it uses less digits than its factorization.

1327611231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201750 (or 2201747 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1327611231 is about 36436.3998084333. The cubic root of 1327611231 is about 1099.0656614197.

Adding to 1327611231 its reverse (1321167231), we get a palindrome (2648778462).

The spelling of 1327611231 in words is "one billion, three hundred twenty-seven million, six hundred eleven thousand, two hundred thirty-one".