16324012123 has 4 divisors (see below), whose sum is σ = 16359732520. Its totient is φ = 16288291728.

The previous prime is 16324012121. The next prime is 16324012151. The reversal of 16324012123 is 32121042361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32121042361 = 523 ⋅61416907.

It is a cyclic number.

It is not a de Polignac number, because 16324012123 - 2¹ = 16324012121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16324012121) 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, 17859513 + ... + 17860426.

It is an arithmetic number, because the mean of its divisors is an integer number (4089933130).

Almost surely, 2^16324012123 is an apocalyptic number.

16324012123 is a deficient number, since it is larger than the sum of its proper divisors (35720397).

16324012123 is an equidigital number, since it uses as much as digits as its factorization.

16324012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35720396.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 16324012123 its reverse (32121042361), we get a palindrome (48445054484).

The spelling of 16324012123 in words is "sixteen billion, three hundred twenty-four million, twelve thousand, one hundred twenty-three".