18823123101 has 16 divisors (see below), whose sum is σ = 25256046464. Its totient is φ = 12469719744.

The previous prime is 18823123093. The next prime is 18823123103. The reversal of 18823123101 is 10132132881.

It is not a de Polignac number, because 18823123101 - 2³ = 18823123093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18823123103) 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, 279600 + ... + 340326.

It is an arithmetic number, because the mean of its divisors is an integer number (1578502904).

Almost surely, 2^18823123101 is an apocalyptic number.

It is an amenable number.

18823123101 is a deficient number, since it is larger than the sum of its proper divisors (6432923363).

18823123101 is a wasteful number, since it uses less digits than its factorization.

18823123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61380.

The product of its (nonzero) digits is 2304, while the sum is 30.

Adding to 18823123101 its reverse (10132132881), we get a palindrome (28955255982).

The spelling of 18823123101 in words is "eighteen billion, eight hundred twenty-three million, one hundred twenty-three thousand, one hundred one".