120000405323 has 16 divisors (see below), whose sum is σ = 122809595040. Its totient is φ = 117212519424.

The previous prime is 120000405277. The next prime is 120000405353. The reversal of 120000405323 is 323504000021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 120000405323 - 2¹⁰ = 120000404299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120000405295 and 120000405304.

It is not an unprimeable number, because it can be changed into a prime (120000405353) 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, 12324365 + ... + 12334097.

It is an arithmetic number, because the mean of its divisors is an integer number (7675599690).

Almost surely, 2^120000405323 is an apocalyptic number.

120000405323 is a deficient number, since it is larger than the sum of its proper divisors (2809189717).

120000405323 is an equidigital number, since it uses as much as digits as its factorization.

120000405323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 120000405323 its reverse (323504000021), we get a palindrome (443504405344).

The spelling of 120000405323 in words is "one hundred twenty billion, four hundred five thousand, three hundred twenty-three".