1161330030 has 96 divisors (see below), whose sum is σ = 3600889344. Its totient is φ = 253902528.

The previous prime is 1161329963. The next prime is 1161330073. The reversal of 1161330030 is 300331611.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1161329985 and 1161330012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25584 + ... + 54563.

It is an arithmetic number, because the mean of its divisors is an integer number (37509264).

Almost surely, 2^1161330030 is an apocalyptic number.

1161330030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161330030 is an abundant number, since it is smaller than the sum of its proper divisors (2439559314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161330030 is a wasteful number, since it uses less digits than its factorization.

1161330030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80190 (or 80187 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1161330030 is about 34078.2926508944. The cubic root of 1161330030 is about 1051.1189975236.

Adding to 1161330030 its reverse (300331611), we get a palindrome (1461661641).

The spelling of 1161330030 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, thirty".