20123010310123 has 8 divisors (see below), whose sum is σ = 23003876867840. Its totient is φ = 17243681452200.

The previous prime is 20123010310087. The next prime is 20123010310157. The reversal of 20123010310123 is 32101301032102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20123010310123 - 2²⁵ = 20122976755691 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 20123010310123.

It is not an unprimeable number, because it can be changed into a prime (20123010310723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384396903 + ... + 384449248.

It is an arithmetic number, because the mean of its divisors is an integer number (2875484608480).

Almost surely, 2^{20123010310123} is an apocalyptic number.

20123010310123 is a deficient number, since it is larger than the sum of its proper divisors (2880866557717).

20123010310123 is an equidigital number, since it uses as much as digits as its factorization.

20123010310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768849897.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20123010310123 its reverse (32101301032102), we get a palindrome (52224311342225).

The spelling of 20123010310123 in words is "twenty trillion, one hundred twenty-three billion, ten million, three hundred ten thousand, one hundred twenty-three".