1115231105 has 16 divisors (see below), whose sum is σ = 1387789200. Its totient is φ = 859326720.

The previous prime is 1115231099. The next prime is 1115231111. The reversal of 1115231105 is 5011325111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1115231099) and next prime (1115231111).

It can be written as a sum of positive squares in 8 ways, for example, as 98386561 + 1016844544 = 9919^2 + 31888^2 .

It is not a de Polignac number, because 1115231105 - 2¹⁴ = 1115214721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51911 + ... + 70179.

It is an arithmetic number, because the mean of its divisors is an integer number (86736825).

Almost surely, 2^1115231105 is an apocalyptic number.

It is an amenable number.

1115231105 is a deficient number, since it is larger than the sum of its proper divisors (272558095).

1115231105 is a wasteful number, since it uses less digits than its factorization.

1115231105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18724.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1115231105 is about 33395.0760592037. The cubic root of 1115231105 is about 1037.0227674988.

Adding to 1115231105 its reverse (5011325111), we get a palindrome (6126556216).

The spelling of 1115231105 in words is "one billion, one hundred fifteen million, two hundred thirty-one thousand, one hundred five".