320035315123 has 4 divisors (see below), whose sum is σ = 322154754448. Its totient is φ = 317915875800.

The previous prime is 320035315087. The next prime is 320035315147. The reversal of 320035315123 is 321513530023.

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 320035315123 - 2²⁵ = 320001760691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320035315091 and 320035315100.

It is not an unprimeable number, because it can be changed into a prime (320035315153) 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, 1059719436 + ... + 1059719737.

It is an arithmetic number, because the mean of its divisors is an integer number (80538688612).

Almost surely, 2^320035315123 is an apocalyptic number.

320035315123 is a deficient number, since it is larger than the sum of its proper divisors (2119439325).

320035315123 is a wasteful number, since it uses less digits than its factorization.

320035315123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119439324.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 320035315123 its reverse (321513530023), we get a palindrome (641548845146).

The spelling of 320035315123 in words is "three hundred twenty billion, thirty-five million, three hundred fifteen thousand, one hundred twenty-three".