320020115242123 has 4 divisors (see below), whose sum is σ = 320020155811048. Its totient is φ = 320020074673200.

The previous prime is 320020115242031. The next prime is 320020115242159. The reversal of 320020115242123 is 321242511020023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 320020115242123 - 2¹⁷ = 320020115111051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320020115242091 and 320020115242100.

It is not an unprimeable number, because it can be changed into a prime (320020115242183) 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, 4201353 + ... + 25645498.

It is an arithmetic number, because the mean of its divisors is an integer number (80005038952762).

Almost surely, 2^{320020115242123} is an apocalyptic number.

320020115242123 is a deficient number, since it is larger than the sum of its proper divisors (40568925).

320020115242123 is a wasteful number, since it uses less digits than its factorization.

320020115242123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40568924.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 320020115242123 its reverse (321242511020023), we get a palindrome (641262626262146).

The spelling of 320020115242123 in words is "three hundred twenty trillion, twenty billion, one hundred fifteen million, two hundred forty-two thousand, one hundred twenty-three".