20452103 has 4 divisors (see below), whose sum is σ = 23373840. Its totient is φ = 17530368.

The previous prime is 20452093. The next prime is 20452109. The reversal of 20452103 is 30125402.

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 20452103 - 2⁶ = 20452039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452109) 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, 1460858 + ... + 1460871.

It is an arithmetic number, because the mean of its divisors is an integer number (5843460).

Almost surely, 2^20452103 is an apocalyptic number.

20452103 is a deficient number, since it is larger than the sum of its proper divisors (2921737).

20452103 is an equidigital number, since it uses as much as digits as its factorization.

20452103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921736.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 20452103 is about 4522.4001370953. The cubic root of 20452103 is about 273.4718679392.

Adding to 20452103 its reverse (30125402), we get a palindrome (50577505).

The spelling of 20452103 in words is "twenty million, four hundred fifty-two thousand, one hundred three".