101516236321 has 4 divisors (see below), whose sum is σ = 107487779652. Its totient is φ = 95544692992.

The previous prime is 101516236319. The next prime is 101516236379. The reversal of 101516236321 is 123632615101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63787058721 + 37729177600 = 252561^2 + 194240^2 .

It is a cyclic number.

It is not a de Polignac number, because 101516236321 - 2¹ = 101516236319 is a prime.

It is a super-2 number, since 2×101516236321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101516236391) 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, 2985771640 + ... + 2985771673.

It is an arithmetic number, because the mean of its divisors is an integer number (26871944913).

Almost surely, 2^101516236321 is an apocalyptic number.

It is an amenable number.

101516236321 is a deficient number, since it is larger than the sum of its proper divisors (5971543331).

101516236321 is an equidigital number, since it uses as much as digits as its factorization.

101516236321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971543330.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 101516236321 in words is "one hundred one billion, five hundred sixteen million, two hundred thirty-six thousand, three hundred twenty-one".