103550413521 has 16 divisors (see below), whose sum is σ = 138516134400. Its totient is φ = 68809466880.

The previous prime is 103550413501. The next prime is 103550413597. The reversal of 103550413521 is 125314055301.

It is not a de Polignac number, because 103550413521 - 2²¹ = 103548316369 is a prime.

It is a super-3 number, since 3×103550413521³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (103550413501) 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, 1296091 + ... + 1373663.

It is an arithmetic number, because the mean of its divisors is an integer number (8657258400).

Almost surely, 2^103550413521 is an apocalyptic number.

It is an amenable number.

103550413521 is a deficient number, since it is larger than the sum of its proper divisors (34965720879).

103550413521 is an equidigital number, since it uses as much as digits as its factorization.

103550413521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79016.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 103550413521 its reverse (125314055301), we get a palindrome (228864468822).

The spelling of 103550413521 in words is "one hundred three billion, five hundred fifty million, four hundred thirteen thousand, five hundred twenty-one".