1113123163 has 4 divisors (see below), whose sum is σ = 1123930288. Its totient is φ = 1102316040.

The previous prime is 1113123149. The next prime is 1113123173. The reversal of 1113123163 is 3613213111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3613213111 = 269 ⋅13432019.

It is a cyclic number.

It is not a de Polignac number, because 1113123163 - 2⁵ = 1113123131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113123103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5403408 + ... + 5403613.

It is an arithmetic number, because the mean of its divisors is an integer number (280982572).

Almost surely, 2^1113123163 is an apocalyptic number.

1113123163 is a deficient number, since it is larger than the sum of its proper divisors (10807125).

1113123163 is a wasteful number, since it uses less digits than its factorization.

1113123163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10807124.

The product of its digits is 324, while the sum is 22.

The square root of 1113123163 is about 33363.5004608329. The cubic root of 1113123163 is about 1036.3689829586.

Adding to 1113123163 its reverse (3613213111), we get a palindrome (4726336274).

The spelling of 1113123163 in words is "one billion, one hundred thirteen million, one hundred twenty-three thousand, one hundred sixty-three".