242111101 has 2 divisors, whose sum is σ = 242111102. Its totient is φ = 242111100.

The previous prime is 242111033. The next prime is 242111119. The reversal of 242111101 is 101111242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189200025 + 52911076 = 13755^2 + 7274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242111101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242111171) 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, 121055550 + 121055551.

It is an arithmetic number, because the mean of its divisors is an integer number (121055551).

Almost surely, 2^242111101 is an apocalyptic number.

It is an amenable number.

242111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

242111101 is an equidigital number, since it uses as much as digits as its factorization.

242111101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 242111101 is about 15559.9196977362. The cubic root of 242111101 is about 623.2633182883.

Adding to 242111101 its reverse (101111242), we get a palindrome (343222343).

The spelling of 242111101 in words is "two hundred forty-two million, one hundred eleven thousand, one hundred one".