20103107 has 2 divisors, whose sum is σ = 20103108. Its totient is φ = 20103106.

The previous prime is 20103103. The next prime is 20103113. The reversal of 20103107 is 70130102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20103107 - 2² = 20103103 is a prime.

It is a super-2 number, since 2×20103107² = 808269822106898, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20103091 and 20103100.

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, 10051553 + 10051554.

It is an arithmetic number, because the mean of its divisors is an integer number (10051554).

Almost surely, 2^20103107 is an apocalyptic number.

20103107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20103107 is an equidigital number, since it uses as much as digits as its factorization.

20103107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 20103107 is about 4483.6488488730. The cubic root of 20103107 is about 271.9074214561.

Adding to 20103107 its reverse (70130102), we get a palindrome (90233209).

The spelling of 20103107 in words is "twenty million, one hundred three thousand, one hundred seven".