20239103 has 4 divisors (see below), whose sum is σ = 21119088. Its totient is φ = 19359120.

The previous prime is 20239099. The next prime is 20239127. The reversal of 20239103 is 30193202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20239103 - 2² = 20239099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20239003) 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, 439958 + ... + 440003.

It is an arithmetic number, because the mean of its divisors is an integer number (5279772).

Almost surely, 2^20239103 is an apocalyptic number.

20239103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20239103 is a deficient number, since it is larger than the sum of its proper divisors (879985).

20239103 is an equidigital number, since it uses as much as digits as its factorization.

20239103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879984.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20239103 is about 4498.7890592914. The cubic root of 20239103 is about 272.5191883915.

The spelling of 20239103 in words is "twenty million, two hundred thirty-nine thousand, one hundred three".