1123000023 has 4 divisors (see below), whose sum is σ = 1497333368. Its totient is φ = 748666680.

The previous prime is 1123000019. The next prime is 1123000027. The reversal of 1123000023 is 3200003211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1123000019) and next prime (1123000027).

It is not a de Polignac number, because 1123000023 - 2² = 1123000019 is a prime.

It is a super-2 number, since 2×1123000023² = 2522258103316001058, 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 = 1122999972 and 1123000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123000027) 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, 187166668 + ... + 187166673.

It is an arithmetic number, because the mean of its divisors is an integer number (374333342).

Almost surely, 2^1123000023 is an apocalyptic number.

1123000023 is a deficient number, since it is larger than the sum of its proper divisors (374333345).

1123000023 is an equidigital number, since it uses as much as digits as its factorization.

1123000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374333344.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1123000023 is about 33511.1925034010. The cubic root of 1123000023 is about 1039.4252319008.

Adding to 1123000023 its reverse (3200003211), we get a palindrome (4323003234).

The spelling of 1123000023 in words is "one billion, one hundred twenty-three million, twenty-three", and thus it is an aban number.