101438215179 has 16 divisors (see below), whose sum is σ = 154583343360. Its totient is φ = 57960635040.

The previous prime is 101438215157. The next prime is 101438215187. The reversal of 101438215179 is 971512834101.

It is not a de Polignac number, because 101438215179 - 2⁹ = 101438214667 is a prime.

It is a super-2 number, since 2×101438215179² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101438215179.

It is not an unprimeable number, because it can be changed into a prime (101438215139) 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 15 ways as a sum of consecutive naturals, for example, 152049 + ... + 475389.

It is an arithmetic number, because the mean of its divisors is an integer number (9661458960).

Almost surely, 2^101438215179 is an apocalyptic number.

101438215179 is a deficient number, since it is larger than the sum of its proper divisors (53145128181).

101438215179 is a wasteful number, since it uses less digits than its factorization.

101438215179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338290.

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 101438215179 in words is "one hundred one billion, four hundred thirty-eight million, two hundred fifteen thousand, one hundred seventy-nine".