103543521313 has 16 divisors (see below), whose sum is σ = 111011711616. Its totient is φ = 96324750720.

The previous prime is 103543521311. The next prime is 103543521343. The reversal of 103543521313 is 313125345301.

It is a happy number.

It is not a de Polignac number, because 103543521313 - 2¹ = 103543521311 is a prime.

It is a super-3 number, since 3×103543521313³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103543521311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2129845 + ... + 2177917.

It is an arithmetic number, because the mean of its divisors is an integer number (6938231976).

Almost surely, 2^103543521313 is an apocalyptic number.

It is an amenable number.

103543521313 is a deficient number, since it is larger than the sum of its proper divisors (7468190303).

103543521313 is a wasteful number, since it uses less digits than its factorization.

103543521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50664.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 103543521313 its reverse (313125345301), we get a palindrome (416668866614).

The spelling of 103543521313 in words is "one hundred three billion, five hundred forty-three million, five hundred twenty-one thousand, three hundred thirteen".