56013123 has 18 divisors (see below), whose sum is σ = 77870884. Its totient is φ = 35812448.

The previous prime is 56013101. The next prime is 56013137. The reversal of 56013123 is 32131065.

56013123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56013123 - 2⁵ = 56013091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56013123.

It is not an unprimeable number, because it can be changed into a prime (56013173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 375853 + ... + 376001.

Almost surely, 2^56013123 is an apocalyptic number.

56013123 is a deficient number, since it is larger than the sum of its proper divisors (21857761).

56013123 is an equidigital number, since it uses as much as digits as its factorization.

56013123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 56013123 is about 7484.1915395051. The cubic root of 56013123 is about 382.6161192155.

Adding to 56013123 its reverse (32131065), we get a palindrome (88144188).

The spelling of 56013123 in words is "fifty-six million, thirteen thousand, one hundred twenty-three".