1130343161 has 4 divisors (see below), whose sum is σ = 1130769024. Its totient is φ = 1129917300.

The previous prime is 1130343133. The next prime is 1130343163. The reversal of 1130343161 is 1613430311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1130343161 - 2²² = 1126148857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130343163) 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 3 ways as a sum of consecutive naturals, for example, 208925 + ... + 214266.

It is an arithmetic number, because the mean of its divisors is an integer number (282692256).

Almost surely, 2^1130343161 is an apocalyptic number.

It is an amenable number.

1130343161 is a deficient number, since it is larger than the sum of its proper divisors (425863).

1130343161 is an equidigital number, since it uses as much as digits as its factorization.

1130343161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425862.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1130343161 is about 33620.5764525238. The cubic root of 1130343161 is about 1041.6858631499.

Adding to 1130343161 its reverse (1613430311), we get a palindrome (2743773472).

The spelling of 1130343161 in words is "one billion, one hundred thirty million, three hundred forty-three thousand, one hundred sixty-one".