1129731611 has 2 divisors, whose sum is σ = 1129731612. Its totient is φ = 1129731610.

The previous prime is 1129731599. The next prime is 1129731613. The reversal of 1129731611 is 1161379211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1129731611 - 2²² = 1125537307 is a prime.

Together with 1129731613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1129731613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564865805 + 564865806.

It is an arithmetic number, because the mean of its divisors is an integer number (564865806).

Almost surely, 2^1129731611 is an apocalyptic number.

1129731611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1129731611 is an equidigital number, since it uses as much as digits as its factorization.

1129731611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 32.

The square root of 1129731611 is about 33611.4803452630. The cubic root of 1129731611 is about 1041.4979680243.

The spelling of 1129731611 in words is "one billion, one hundred twenty-nine million, seven hundred thirty-one thousand, six hundred eleven".