1161113000 has 32 divisors (see below), whose sum is σ = 2717006760. Its totient is φ = 464444800.

The previous prime is 1161112987. The next prime is 1161113011. The reversal of 1161113000 is 3111611.

It can be written as a sum of positive squares in 4 ways, for example, as 437395396 + 723717604 = 20914^2 + 26902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579557 + ... + 581556.

Almost surely, 2^1161113000 is an apocalyptic number.

1161113000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161113000 is an abundant number, since it is smaller than the sum of its proper divisors (1555893760).

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

1161113000 is a wasteful number, since it uses less digits than its factorization.

1161113000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161134 (or 1161120 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1161113000 is about 34075.1082169962. The cubic root of 1161113000 is about 1051.0535155439.

Adding to 1161113000 its reverse (3111611), we get a palindrome (1164224611).

The spelling of 1161113000 in words is "one billion, one hundred sixty-one million, one hundred thirteen thousand".