1131413611 has 2 divisors, whose sum is σ = 1131413612. Its totient is φ = 1131413610.

The previous prime is 1131413609. The next prime is 1131413629. The reversal of 1131413611 is 1163141311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131413611 - 2¹ = 1131413609 is a prime.

Together with 1131413609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1131413651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565706805 + 565706806.

It is an arithmetic number, because the mean of its divisors is an integer number (565706806).

Almost surely, 2^1131413611 is an apocalyptic number.

1131413611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131413611 is an equidigital number, since it uses as much as digits as its factorization.

1131413611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 1131413611 is about 33636.4922517197. The cubic root of 1131413611 is about 1042.0145895224.

Adding to 1131413611 its reverse (1163141311), we get a palindrome (2294554922).

The spelling of 1131413611 in words is "one billion, one hundred thirty-one million, four hundred thirteen thousand, six hundred eleven".