103200123221 has 4 divisors (see below), whose sum is σ = 111138594252. Its totient is φ = 95261652192.

The previous prime is 103200123209. The next prime is 103200123253. The reversal of 103200123221 is 122321002301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122321002301 = 43177 ⋅2833013.

It can be written as a sum of positive squares in 2 ways, for example, as 38371324996 + 64828798225 = 195886^2 + 254615^2 .

It is a cyclic number.

It is not a de Polignac number, because 103200123221 - 2¹⁴ = 103200106837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103200123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103200173221) 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 3 ways as a sum of consecutive naturals, for example, 3969235496 + ... + 3969235521.

It is an arithmetic number, because the mean of its divisors is an integer number (27784648563).

Almost surely, 2^103200123221 is an apocalyptic number.

It is an amenable number.

103200123221 is a deficient number, since it is larger than the sum of its proper divisors (7938471031).

103200123221 is an equidigital number, since it uses as much as digits as its factorization.

103200123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7938471030.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103200123221 its reverse (122321002301), we get a palindrome (225521125522).

The spelling of 103200123221 in words is "one hundred three billion, two hundred million, one hundred twenty-three thousand, two hundred twenty-one".