20113102103 has 2 divisors, whose sum is σ = 20113102104. Its totient is φ = 20113102102.

The previous prime is 20113102081. The next prime is 20113102117. The reversal of 20113102103 is 30120131102.

It is an a-pointer prime, because the next prime (20113102117) can be obtained adding 20113102103 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20113102103 - 2⁶ = 20113102039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113102153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056551051 + 10056551052.

It is an arithmetic number, because the mean of its divisors is an integer number (10056551052).

Almost surely, 2^20113102103 is an apocalyptic number.

20113102103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113102103 is an equidigital number, since it uses as much as digits as its factorization.

20113102103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20113102103 its reverse (30120131102), we get a palindrome (50233233205).

The spelling of 20113102103 in words is "twenty billion, one hundred thirteen million, one hundred two thousand, one hundred three".