20372103 has 24 divisors (see below), whose sum is σ = 31831488. Its totient is φ = 12506112.

The previous prime is 20372083. The next prime is 20372111. The reversal of 20372103 is 30127302.

It is not a de Polignac number, because 20372103 - 2⁵ = 20372071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5775 + ... + 8607.

It is an arithmetic number, because the mean of its divisors is an integer number (1326312).

Almost surely, 2^20372103 is an apocalyptic number.

20372103 is a deficient number, since it is larger than the sum of its proper divisors (11459385).

20372103 is a wasteful number, since it uses less digits than its factorization.

20372103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903 (or 2900 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20372103 is about 4513.5466099288. The cubic root of 20372103 is about 273.1148331460.

Adding to 20372103 its reverse (30127302), we get a palindrome (50499405).

The spelling of 20372103 in words is "twenty million, three hundred seventy-two thousand, one hundred three".