20103101 has 2 divisors, whose sum is σ = 20103102. Its totient is φ = 20103100.

The previous prime is 20103091. The next prime is 20103103. The reversal of 20103101 is 10130102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18267076 + 1836025 = 4274^2 + 1355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103101 is a prime.

It is a super-4 number, since 4×20103101⁴ (a number of 30 digits) contains 4444 as substring.

It is a Sophie Germain prime.

Together with 20103103, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20103103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051550 + 10051551.

It is an arithmetic number, because the mean of its divisors is an integer number (10051551).

Almost surely, 2^20103101 is an apocalyptic number.

It is an amenable number.

20103101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103101 is an equidigital number, since it uses as much as digits as its factorization.

20103101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20103101 is about 4483.6481797750. The cubic root of 20103101 is about 271.9073944048.

Adding to 20103101 its reverse (10130102), we get a palindrome (30233203).

The spelling of 20103101 in words is "twenty million, one hundred three thousand, one hundred one".