56123123 has 16 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 46769856.

The previous prime is 56123107. The next prime is 56123129. The reversal of 56123123 is 32132165.

It is not a de Polignac number, because 56123123 - 2⁴ = 56123107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56123129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58415 + ... + 59367.

It is an arithmetic number, because the mean of its divisors is an integer number (4121280).

Almost surely, 2^56123123 is an apocalyptic number.

56123123 is a deficient number, since it is larger than the sum of its proper divisors (9817357).

56123123 is a wasteful number, since it uses less digits than its factorization.

56123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186.

The product of its digits is 1080, while the sum is 23.

The square root of 56123123 is about 7491.5367582359. The cubic root of 56123123 is about 382.8664192039.

Adding to 56123123 its reverse (32132165), we get a palindrome (88255288).

The spelling of 56123123 in words is "fifty-six million, one hundred twenty-three thousand, one hundred twenty-three".