20330402312123 has 4 divisors (see below), whose sum is σ = 20426754929928. Its totient is φ = 20234049694320.

The previous prime is 20330402312089. The next prime is 20330402312173. The reversal of 20330402312123 is 32121320403302.

It is a happy number.

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 20330402312123 - 2³⁸ = 20055524405179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20330402312092 and 20330402312101.

It is not an unprimeable number, because it can be changed into a prime (20330402312173) 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, 48176308586 + ... + 48176309007.

It is an arithmetic number, because the mean of its divisors is an integer number (5106688732482).

Almost surely, 2^{20330402312123} is an apocalyptic number.

20330402312123 is a deficient number, since it is larger than the sum of its proper divisors (96352617805).

20330402312123 is an equidigital number, since it uses as much as digits as its factorization.

20330402312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96352617804.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20330402312123 its reverse (32121320403302), we get a palindrome (52451722715425).

The spelling of 20330402312123 in words is "twenty trillion, three hundred thirty billion, four hundred two million, three hundred twelve thousand, one hundred twenty-three".