16623053123 has 4 divisors (see below), whose sum is σ = 16725035208. Its totient is φ = 16521071040.

The previous prime is 16623053113. The next prime is 16623053147. The reversal of 16623053123 is 32135032661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32135032661 = 541 ⋅59399321.

It is a cyclic number.

It is not a de Polignac number, because 16623053123 - 2²² = 16618858819 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 16623053123.

It is not an unprimeable number, because it can be changed into a prime (16623053113) 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, 50990798 + ... + 50991123.

It is an arithmetic number, because the mean of its divisors is an integer number (4181258802).

Almost surely, 2^16623053123 is an apocalyptic number.

16623053123 is a deficient number, since it is larger than the sum of its proper divisors (101982085).

16623053123 is a wasteful number, since it uses less digits than its factorization.

16623053123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101982084.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 16623053123 its reverse (32135032661), we get a palindrome (48758085784).

The spelling of 16623053123 in words is "sixteen billion, six hundred twenty-three million, fifty-three thousand, one hundred twenty-three".