103543502321 has 4 divisors (see below), whose sum is σ = 118335431232. Its totient is φ = 88751573412.

The previous prime is 103543502317. The next prime is 103543502341. The reversal of 103543502321 is 123205345301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103543502321 - 2² = 103543502317 is a prime.

It is a super-3 number, since 3×103543502321³ (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 (103543502341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7395964445 + ... + 7395964458.

It is an arithmetic number, because the mean of its divisors is an integer number (29583857808).

Almost surely, 2^103543502321 is an apocalyptic number.

It is an amenable number.

103543502321 is a deficient number, since it is larger than the sum of its proper divisors (14791928911).

103543502321 is an equidigital number, since it uses as much as digits as its factorization.

103543502321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791928910.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 103543502321 its reverse (123205345301), we get a palindrome (226748847622).

The spelling of 103543502321 in words is "one hundred three billion, five hundred forty-three million, five hundred two thousand, three hundred twenty-one".