103200321 has 24 divisors (see below), whose sum is σ = 163979424. Its totient is φ = 57529920.

The previous prime is 103200313. The next prime is 103200367. The reversal of 103200321 is 123002301.

It is a happy number.

It is not a de Polignac number, because 103200321 - 2³ = 103200313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103200297 and 103200306.

It is not an unprimeable number, because it can be changed into a prime (103200371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2535 + ... + 14588.

It is an arithmetic number, because the mean of its divisors is an integer number (6832476).

Almost surely, 2^103200321 is an apocalyptic number.

It is an amenable number.

103200321 is a deficient number, since it is larger than the sum of its proper divisors (60779103).

103200321 is a wasteful number, since it uses less digits than its factorization.

103200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181 (or 17174 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103200321 is about 10158.7558785513. The cubic root of 103200321 is about 469.0585061044.

Adding to 103200321 its reverse (123002301), we get a palindrome (226202622).

The spelling of 103200321 in words is "one hundred three million, two hundred thousand, three hundred twenty-one".