101816315138 has 8 divisors (see below), whose sum is σ = 153206254332. Its totient is φ = 50747563696.

The previous prime is 101816315131. The next prime is 101816315143. The reversal of 101816315138 is 831513618101.

It can be written as a sum of positive squares in 2 ways, for example, as 101688918769 + 127396369 = 318887^2 + 11287^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101816315131) 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 in 3 ways as a sum of consecutive naturals, for example, 80296145 + ... + 80297412.

Almost surely, 2^101816315138 is an apocalyptic number.

101816315138 is a deficient number, since it is larger than the sum of its proper divisors (51389939194).

101816315138 is a wasteful number, since it uses less digits than its factorization.

101816315138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160593876.

The product of its (nonzero) digits is 17280, while the sum is 38.

It can be divided in two parts, 1018163 and 15138, that added together give a palindrome (1033301).

The spelling of 101816315138 in words is "one hundred one billion, eight hundred sixteen million, three hundred fifteen thousand, one hundred thirty-eight".