1123013023 has 16 divisors (see below), whose sum is σ = 1272967200. Its totient is φ = 981348480.

The previous prime is 1123013009. The next prime is 1123013029. The reversal of 1123013023 is 3203103211.

It is a cyclic number.

It is not a de Polignac number, because 1123013023 - 2⁹ = 1123012511 is a prime.

It is a super-2 number, since 2×1123013023² = 2522316499655197058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123012988 and 1123013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123013029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65365 + ... + 80737.

It is an arithmetic number, because the mean of its divisors is an integer number (79560450).

Almost surely, 2^1123013023 is an apocalyptic number.

1123013023 is a deficient number, since it is larger than the sum of its proper divisors (149954177).

1123013023 is a wasteful number, since it uses less digits than its factorization.

1123013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15642.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1123013023 is about 33511.3864678858. The cubic root of 1123013023 is about 1039.4292427276.

Adding to 1123013023 its reverse (3203103211), we get a palindrome (4326116234).

The spelling of 1123013023 in words is "one billion, one hundred twenty-three million, thirteen thousand, twenty-three".