20302412404123 has 4 divisors (see below), whose sum is σ = 20303103297240. Its totient is φ = 20301721511008.

The previous prime is 20302412404081. The next prime is 20302412404163. The reversal of 20302412404123 is 32140421420302.

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 20302412404123 - 2¹⁷ = 20302412273051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20302412404091 and 20302412404100.

It is not an unprimeable number, because it can be changed into a prime (20302412404163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345402478 + ... + 345461251.

It is an arithmetic number, because the mean of its divisors is an integer number (5075775824310).

Almost surely, 2^{20302412404123} is an apocalyptic number.

20302412404123 is a deficient number, since it is larger than the sum of its proper divisors (690893117).

20302412404123 is an equidigital number, since it uses as much as digits as its factorization.

20302412404123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690893116.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20302412404123 its reverse (32140421420302), we get a palindrome (52442833824425).

The spelling of 20302412404123 in words is "twenty trillion, three hundred two billion, four hundred twelve million, four hundred four thousand, one hundred twenty-three".