101142241 has 2 divisors, whose sum is σ = 101142242. Its totient is φ = 101142240.

The previous prime is 101142233. The next prime is 101142253. The reversal of 101142241 is 142241101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78854400 + 22287841 = 8880^2 + 4721^2 .

It is a cyclic number.

It is not a de Polignac number, because 101142241 - 2³ = 101142233 is a prime.

It is not a weakly prime, because it can be changed into another prime (101142211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50571120 + 50571121.

It is an arithmetic number, because the mean of its divisors is an integer number (50571121).

Almost surely, 2^101142241 is an apocalyptic number.

It is an amenable number.

101142241 is a deficient number, since it is larger than the sum of its proper divisors (1).

101142241 is an equidigital number, since it uses as much as digits as its factorization.

101142241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 101142241 is about 10056.9498855269. The cubic root of 101142241 is about 465.9194679308.

Adding to 101142241 its reverse (142241101), we get a palindrome (243383342).

It can be divided in two parts, 101 and 142241, that multiplied together give a palindrome (14366341).

The spelling of 101142241 in words is "one hundred one million, one hundred forty-two thousand, two hundred forty-one".