103321203121 has 4 divisors (see below), whose sum is σ = 108759161200. Its totient is φ = 97883245044.

The previous prime is 103321203119. The next prime is 103321203133. The reversal of 103321203121 is 121302123301.

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 103321203121 - 2¹ = 103321203119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5437958059 = 103321203121 / (1 + 0 + 3 + 3 + 2 + 1 + 2 + 0 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103321203151) 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, 2718979011 + ... + 2718979048.

It is an arithmetic number, because the mean of its divisors is an integer number (27189790300).

Almost surely, 2^103321203121 is an apocalyptic number.

It is an amenable number.

103321203121 is a deficient number, since it is larger than the sum of its proper divisors (5437958079).

103321203121 is an equidigital number, since it uses as much as digits as its factorization.

103321203121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437958078.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103321203121 its reverse (121302123301), we get a palindrome (224623326422).

The spelling of 103321203121 in words is "one hundred three billion, three hundred twenty-one million, two hundred three thousand, one hundred twenty-one".