101243134242 has 24 divisors (see below), whose sum is σ = 224461524144. Its totient is φ = 32962880664.

The previous prime is 101243134189. The next prime is 101243134261. The reversal of 101243134242 is 242431342101.

101243134242 is a `hidden beast` number, since 101 + 2 + 4 + 313 + 4 + 242 = 666.

It is a super-2 number, since 2×101243134242² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 65401768 + ... + 65403315.

It is an arithmetic number, because the mean of its divisors is an integer number (9352563506).

Almost surely, 2^101243134242 is an apocalyptic number.

101243134242 is an abundant number, since it is smaller than the sum of its proper divisors (123218389902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101243134242 is a wasteful number, since it uses less digits than its factorization.

101243134242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130805134 (or 130805131 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 101243134242 its reverse (242431342101), we get a palindrome (343674476343).

The spelling of 101243134242 in words is "one hundred one billion, two hundred forty-three million, one hundred thirty-four thousand, two hundred forty-two".