1123161117 has 64 divisors (see below), whose sum is σ = 1811819520. Its totient is φ = 611380224.

The previous prime is 1123161113. The next prime is 1123161121. The reversal of 1123161117 is 7111613211.

It is an interprime number because it is at equal distance from previous prime (1123161113) and next prime (1123161121).

It is not a de Polignac number, because 1123161117 - 2² = 1123161113 is a prime.

It is a super-2 number, since 2×1123161117² = 2522981789481375378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123161113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2053038 + ... + 2053584.

It is an arithmetic number, because the mean of its divisors is an integer number (28309680).

Almost surely, 2^1123161117 is an apocalyptic number.

1123161117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1123161117 is a deficient number, since it is larger than the sum of its proper divisors (688658403).

1123161117 is a wasteful number, since it uses less digits than its factorization.

1123161117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 252, while the sum is 24.

The square root of 1123161117 is about 33513.5960022198. The cubic root of 1123161117 is about 1039.4749312653.

Adding to 1123161117 its reverse (7111613211), we get a palindrome (8234774328).

The spelling of 1123161117 in words is "one billion, one hundred twenty-three million, one hundred sixty-one thousand, one hundred seventeen".