123306056 has 16 divisors (see below), whose sum is σ = 231325740. Its totient is φ = 61619200.

The previous prime is 123306031. The next prime is 123306061. The reversal of 123306056 is 650603321.

It can be written as a sum of positive squares in 2 ways, for example, as 104244100 + 19061956 = 10210^2 + 4366^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18356 + ... + 24156.

Almost surely, 2^123306056 is an apocalyptic number.

It is an amenable number.

123306056 is a deficient number, since it is larger than the sum of its proper divisors (108019684).

123306056 is a wasteful number, since it uses less digits than its factorization.

123306056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464 (or 8460 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 123306056 is about 11104.3260038599. The cubic root of 123306056 is about 497.7311280127.

Adding to 123306056 its reverse (650603321), we get a palindrome (773909377).

The spelling of 123306056 in words is "one hundred twenty-three million, three hundred six thousand, fifty-six".