101344203521 has 6 divisors (see below), whose sum is σ = 111394868466. Its totient is φ = 92131094000.

The previous prime is 101344203511. The next prime is 101344203557. The reversal of 101344203521 is 125302443101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 91499595121 + 9844608400 = 302489^2 + 99220^2 .

It is a de Polignac number, because none of the positive numbers 2^k-101344203521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101344203511) 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 5 ways as a sum of consecutive naturals, for example, 418777580 + ... + 418777821.

It is an arithmetic number, because the mean of its divisors is an integer number (18565811411).

Almost surely, 2^101344203521 is an apocalyptic number.

101344203521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101344203521 is a deficient number, since it is larger than the sum of its proper divisors (10050664945).

101344203521 is an equidigital number, since it uses as much as digits as its factorization.

101344203521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837555423 (or 837555412 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 101344203521 its reverse (125302443101), we get a palindrome (226646646622).

The spelling of 101344203521 in words is "one hundred one billion, three hundred forty-four million, two hundred three thousand, five hundred twenty-one".