56305345123 has 4 divisors (see below), whose sum is σ = 59268784360. Its totient is φ = 53341905888.

The previous prime is 56305345121. The next prime is 56305345139. The reversal of 56305345123 is 32154350365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56305345123 - 2¹ = 56305345121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56305345121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1481719590 + ... + 1481719627.

It is an arithmetic number, because the mean of its divisors is an integer number (14817196090).

Almost surely, 2^56305345123 is an apocalyptic number.

56305345123 is a deficient number, since it is larger than the sum of its proper divisors (2963439237).

56305345123 is a wasteful number, since it uses less digits than its factorization.

56305345123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963439236.

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 56305345123 its reverse (32154350365), we get a palindrome (88459695488).

The spelling of 56305345123 in words is "fifty-six billion, three hundred five million, three hundred forty-five thousand, one hundred twenty-three".