100003811 has 2 divisors, whose sum is σ = 100003812. Its totient is φ = 100003810.

The previous prime is 100003807. The next prime is 100003823. The reversal of 100003811 is 118300001.

It is a weak prime.

It is an emirp because it is prime and its reverse (118300001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100003811 - 2² = 100003807 is a prime.

It is not a weakly prime, because it can be changed into another prime (100003801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50001905 + 50001906.

It is an arithmetic number, because the mean of its divisors is an integer number (50001906).

Almost surely, 2^100003811 is an apocalyptic number.

100003811 is a deficient number, since it is larger than the sum of its proper divisors (1).

100003811 is an equidigital number, since it uses as much as digits as its factorization.

100003811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 100003811 is about 10000.1905481846. The cubic root of 100003811 is about 464.1647796514.

Adding to 100003811 its reverse (118300001), we get a palindrome (218303812).

The spelling of 100003811 in words is "one hundred million, three thousand, eight hundred eleven".