16001034123 has 4 divisors (see below), whose sum is σ = 21334712168. Its totient is φ = 10667356080.

The previous prime is 16001034109. The next prime is 16001034157. The reversal of 16001034123 is 32143010061.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16001034123 - 2⁴ = 16001034107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16001034123.

It is not an unprimeable number, because it can be changed into a prime (16001034523) 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, 2666839018 + ... + 2666839023.

It is an arithmetic number, because the mean of its divisors is an integer number (5333678042).

Almost surely, 2^16001034123 is an apocalyptic number.

16001034123 is a deficient number, since it is larger than the sum of its proper divisors (5333678045).

16001034123 is an equidigital number, since it uses as much as digits as its factorization.

16001034123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333678044.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 16001034123 its reverse (32143010061), we get a palindrome (48144044184).

The spelling of 16001034123 in words is "sixteen billion, one million, thirty-four thousand, one hundred twenty-three".