1131440327 has 2 divisors, whose sum is σ = 1131440328. Its totient is φ = 1131440326.

The previous prime is 1131440281. The next prime is 1131440351. The reversal of 1131440327 is 7230441311.

It is a strong prime.

It is an emirp because it is prime and its reverse (7230441311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131440327 - 2²⁰ = 1130391751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131440296 and 1131440305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131440377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565720163 + 565720164.

It is an arithmetic number, because the mean of its divisors is an integer number (565720164).

Almost surely, 2^1131440327 is an apocalyptic number.

1131440327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131440327 is an equidigital number, since it uses as much as digits as its factorization.

1131440327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1131440327 is about 33636.8893775866. The cubic root of 1131440327 is about 1042.0227911333.

Adding to 1131440327 its reverse (7230441311), we get a palindrome (8361881638).

The spelling of 1131440327 in words is "one billion, one hundred thirty-one million, four hundred forty thousand, three hundred twenty-seven".