20123004113 has 16 divisors (see below), whose sum is σ = 20467054080. Its totient is φ = 19782408576.

The previous prime is 20123004029. The next prime is 20123004151. The reversal of 20123004113 is 31140032102.

It is a cyclic number.

It is not a de Polignac number, because 20123004113 - 2¹² = 20123000017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20123004091 and 20123004100.

It is not an unprimeable number, because it can be changed into a prime (20123004613) 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 15 ways as a sum of consecutive naturals, for example, 10095845 + ... + 10097837.

It is an arithmetic number, because the mean of its divisors is an integer number (1279190880).

Almost surely, 2^20123004113 is an apocalyptic number.

It is an amenable number.

20123004113 is a deficient number, since it is larger than the sum of its proper divisors (344049967).

20123004113 is a wasteful number, since it uses less digits than its factorization.

20123004113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20123004113 its reverse (31140032102), we get a palindrome (51263036215).

The spelling of 20123004113 in words is "twenty billion, one hundred twenty-three million, four thousand, one hundred thirteen".