1161010118 has 4 divisors (see below), whose sum is σ = 1741515180. Its totient is φ = 580505058.

The previous prime is 1161010111. The next prime is 1161010127. The reversal of 1161010118 is 8110101611.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1161010118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161010111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290252528 + ... + 290252531.

It is an arithmetic number, because the mean of its divisors is an integer number (435378795).

Almost surely, 2^1161010118 is an apocalyptic number.

1161010118 is a deficient number, since it is larger than the sum of its proper divisors (580505062).

1161010118 is an equidigital number, since it uses as much as digits as its factorization.

1161010118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580505061.

The product of its (nonzero) digits is 48, while the sum is 20.

The square root of 1161010118 is about 34073.5985478493. The cubic root of 1161010118 is about 1051.0224712839.

Adding to 1161010118 its reverse (8110101611), we get a palindrome (9271111729).

The spelling of 1161010118 in words is "one billion, one hundred sixty-one million, ten thousand, one hundred eighteen".