100242811 has 2 divisors, whose sum is σ = 100242812. Its totient is φ = 100242810.

The previous prime is 100242799. The next prime is 100242893. The reversal of 100242811 is 118242001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100242811 - 2¹³ = 100234619 is a prime.

It is not a weakly prime, because it can be changed into another prime (100242511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121405 + 50121406.

It is an arithmetic number, because the mean of its divisors is an integer number (50121406).

Almost surely, 2^100242811 is an apocalyptic number.

100242811 is a deficient number, since it is larger than the sum of its proper divisors (1).

100242811 is an equidigital number, since it uses as much as digits as its factorization.

100242811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 100242811 is about 10012.1331892859. The cubic root of 100242811 is about 464.5342559851.

Adding to 100242811 its reverse (118242001), we get a palindrome (218484812).

The spelling of 100242811 in words is "one hundred million, two hundred forty-two thousand, eight hundred eleven".