2106903811 has 2 divisors, whose sum is σ = 2106903812. Its totient is φ = 2106903810.

The previous prime is 2106903791. The next prime is 2106903829. The reversal of 2106903811 is 1183096012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2106903811 is a prime.

It is not a weakly prime, because it can be changed into another prime (2106903611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053451905 + 1053451906.

It is an arithmetic number, because the mean of its divisors is an integer number (1053451906).

Almost surely, 2^2106903811 is an apocalyptic number.

2106903811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2106903811 is an equidigital number, since it uses as much as digits as its factorization.

2106903811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 2106903811 is about 45901.0218949426. The cubic root of 2106903811 is about 1281.9809437127.

Adding to 2106903811 its reverse (1183096012), we get a palindrome (3289999823).

The spelling of 2106903811 in words is "two billion, one hundred six million, nine hundred three thousand, eight hundred eleven".