1163011099 has 16 divisors (see below), whose sum is σ = 1232755200. Its totient is φ = 1095402784.

The previous prime is 1163011081. The next prime is 1163011133. The reversal of 1163011099 is 9901103611.

It is a cyclic number.

It is not a de Polignac number, because 1163011099 - 2¹⁵ = 1162978331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1163011099.

It is not an unprimeable number, because it can be changed into a prime (1163011019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471732 + ... + 474190.

It is an arithmetic number, because the mean of its divisors is an integer number (77047200).

Almost surely, 2^1163011099 is an apocalyptic number.

1163011099 is a deficient number, since it is larger than the sum of its proper divisors (69744101).

1163011099 is a wasteful number, since it uses less digits than its factorization.

1163011099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 1163011099 is about 34102.9485382129. The cubic root of 1163011099 is about 1051.6259311255.

The spelling of 1163011099 in words is "one billion, one hundred sixty-three million, eleven thousand, ninety-nine".