51023033123 has 4 divisors (see below), whose sum is σ = 51596325720. Its totient is φ = 50449740528.

The previous prime is 51023033111. The next prime is 51023033161. The reversal of 51023033123 is 32133032015.

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 51023033123 - 2⁸ = 51023032867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51023033183) 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 3 ways as a sum of consecutive naturals, for example, 286646165 + ... + 286646342.

It is an arithmetic number, because the mean of its divisors is an integer number (12899081430).

Almost surely, 2^51023033123 is an apocalyptic number.

51023033123 is a deficient number, since it is larger than the sum of its proper divisors (573292597).

51023033123 is an equidigital number, since it uses as much as digits as its factorization.

51023033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573292596.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 51023033123 its reverse (32133032015), we get a palindrome (83156065138).

The spelling of 51023033123 in words is "fifty-one billion, twenty-three million, thirty-three thousand, one hundred twenty-three".