16204322123 has 32 divisors (see below), whose sum is σ = 18969914880. Its totient is φ = 13678824960.

The previous prime is 16204322111. The next prime is 16204322171. The reversal of 16204322123 is 32122340261.

It is a cyclic number.

It is not a de Polignac number, because 16204322123 - 2⁶ = 16204322059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16204322092 and 16204322101.

It is not an unprimeable number, because it can be changed into a prime (16204322723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4338965 + ... + 4342697.

It is an arithmetic number, because the mean of its divisors is an integer number (592809840).

Almost surely, 2^16204322123 is an apocalyptic number.

16204322123 is a deficient number, since it is larger than the sum of its proper divisors (2765592757).

16204322123 is a wasteful number, since it uses less digits than its factorization.

16204322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 16204322123 its reverse (32122340261), we get a palindrome (48326662384).

The spelling of 16204322123 in words is "sixteen billion, two hundred four million, three hundred twenty-two thousand, one hundred twenty-three".