101538671242 has 8 divisors (see below), whose sum is σ = 152900645796. Its totient is φ = 50571789312.

The previous prime is 101538671231. The next prime is 101538671249. The reversal of 101538671242 is 242176835101.

It can be written as a sum of positive squares in 2 ways, for example, as 89999400001 + 11539271241 = 299999^2 + 107421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 101538671195 and 101538671204.

It is not an unprimeable number, because it can be changed into a prime (101538671249) 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 in 3 ways as a sum of consecutive naturals, for example, 98772513 + ... + 98773540.

Almost surely, 2^101538671242 is an apocalyptic number.

101538671242 is a deficient number, since it is larger than the sum of its proper divisors (51361974554).

101538671242 is a wasteful number, since it uses less digits than its factorization.

101538671242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197546312.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 101538671242 in words is "one hundred one billion, five hundred thirty-eight million, six hundred seventy-one thousand, two hundred forty-two".