101242124281 has 2 divisors, whose sum is σ = 101242124282. Its totient is φ = 101242124280.

The previous prime is 101242124251. The next prime is 101242124329. The reversal of 101242124281 is 182421242101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74299856400 + 26942267881 = 272580^2 + 164141^2 .

It is a cyclic number.

It is not a de Polignac number, because 101242124281 - 2⁷ = 101242124153 is a prime.

It is a super-2 number, since 2×101242124281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101242124251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50621062140 + 50621062141.

It is an arithmetic number, because the mean of its divisors is an integer number (50621062141).

Almost surely, 2^101242124281 is an apocalyptic number.

It is an amenable number.

101242124281 is a deficient number, since it is larger than the sum of its proper divisors (1).

101242124281 is an equidigital number, since it uses as much as digits as its factorization.

101242124281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 28.

Adding to 101242124281 its reverse (182421242101), we get a palindrome (283663366382).

The spelling of 101242124281 in words is "one hundred one billion, two hundred forty-two million, one hundred twenty-four thousand, two hundred eighty-one".