56861312103 has 48 divisors (see below), whose sum is σ = 92653217280. Its totient is φ = 33422507712.

The previous prime is 56861312093. The next prime is 56861312107. The reversal of 56861312103 is 30121316865.

56861312103 is a `hidden beast` number, since 568 + 61 + 31 + 2 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 56861312103 - 2⁴ = 56861312087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56861312107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49851 + ... + 340892.

It is an arithmetic number, because the mean of its divisors is an integer number (1930275360).

Almost surely, 2^56861312103 is an apocalyptic number.

56861312103 is a deficient number, since it is larger than the sum of its proper divisors (35791905177).

56861312103 is a wasteful number, since it uses less digits than its factorization.

56861312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390828 (or 390825 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Adding to 56861312103 its reverse (30121316865), we get a palindrome (86982628968).

The spelling of 56861312103 in words is "fifty-six billion, eight hundred sixty-one million, three hundred twelve thousand, one hundred three".