20103103 has 2 divisors, whose sum is σ = 20103104. Its totient is φ = 20103102.

The previous prime is 20103101. The next prime is 20103107. The reversal of 20103103 is 30130102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20103103 - 2¹ = 20103101 is a prime.

Together with 20103101, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20103103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20103101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051551 + 10051552.

It is an arithmetic number, because the mean of its divisors is an integer number (10051552).

Almost surely, 2^20103103 is an apocalyptic number.

20103103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103103 is an equidigital number, since it uses as much as digits as its factorization.

20103103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 20103103 is about 4483.6484028077. The cubic root of 20103103 is about 271.9074034219.

Adding to 20103103 its reverse (30130102), we get a palindrome (50233205).

The spelling of 20103103 in words is "twenty million, one hundred three thousand, one hundred three".