123023056 has 20 divisors (see below), whose sum is σ = 256692772. Its totient is φ = 56779776.

The previous prime is 123023051. The next prime is 123023071. The reversal of 123023056 is 650320321.

It can be written as a sum of positive squares in 2 ways, for example, as 65869456 + 57153600 = 8116^2 + 7560^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023051) 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, 295521 + ... + 295936.

Almost surely, 2^123023056 is an apocalyptic number.

123023056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123023056 is an abundant number, since it is smaller than the sum of its proper divisors (133669716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123023056 is a wasteful number, since it uses less digits than its factorization.

123023056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591478 (or 591472 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 123023056 is about 11091.5759024586. The cubic root of 123023056 is about 497.3500550616.

Adding to 123023056 its reverse (650320321), we get a palindrome (773343377).

The spelling of 123023056 in words is "one hundred twenty-three million, twenty-three thousand, fifty-six".