320343034123 has 16 divisors (see below), whose sum is σ = 373091235840. Its totient is φ = 269343206496.

The previous prime is 320343034073. The next prime is 320343034127. The reversal of 320343034123 is 321430343023.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-320343034123 is a prime.

It is a super-2 number, since 2×320343034123² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320343034091 and 320343034100.

It is not an unprimeable number, because it can be changed into a prime (320343034127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755838 + ... + 1929676.

It is an arithmetic number, because the mean of its divisors is an integer number (23318202240).

Almost surely, 2^320343034123 is an apocalyptic number.

320343034123 is a deficient number, since it is larger than the sum of its proper divisors (52748201717).

320343034123 is a wasteful number, since it uses less digits than its factorization.

320343034123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178866.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 320343034123 its reverse (321430343023), we get a palindrome (641773377146).

The spelling of 320343034123 in words is "three hundred twenty billion, three hundred forty-three million, thirty-four thousand, one hundred twenty-three".