20123097 has 16 divisors (see below), whose sum is σ = 28047360. Its totient is φ = 12820752.

The previous prime is 20123063. The next prime is 20123099. The reversal of 20123097 is 79032102.

It is a de Polignac number, because none of the positive numbers 2^k-20123097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4404 + ... + 7722.

It is an arithmetic number, because the mean of its divisors is an integer number (1752960).

Almost surely, 2^20123097 is an apocalyptic number.

It is an amenable number.

20123097 is a deficient number, since it is larger than the sum of its proper divisors (7924263).

20123097 is a wasteful number, since it uses less digits than its factorization.

20123097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20123097 is about 4485.8775061297. The cubic root of 20123097 is about 271.9975174586.

Adding to 20123097 its reverse (79032102), we get a palindrome (99155199).

The spelling of 20123097 in words is "twenty million, one hundred twenty-three thousand, ninety-seven".