103220321213 has 4 divisors (see below), whose sum is σ = 103278020220. Its totient is φ = 103162622208.

The previous prime is 103220321189. The next prime is 103220321249. The reversal of 103220321213 is 312123022301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312123022301 = 23 ⋅13570566187.

It can be written as a sum of positive squares in 2 ways, for example, as 94631294884 + 8589026329 = 307622^2 + 92677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103220321213 is a prime.

It is a super-2 number, since 2×103220321213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103220324213) 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, 28846820 + ... + 28850397.

It is an arithmetic number, because the mean of its divisors is an integer number (25819505055).

Almost surely, 2^103220321213 is an apocalyptic number.

It is an amenable number.

103220321213 is a deficient number, since it is larger than the sum of its proper divisors (57699007).

103220321213 is an equidigital number, since it uses as much as digits as its factorization.

103220321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57699006.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 103220321213 its reverse (312123022301), we get a palindrome (415343343514).

The spelling of 103220321213 in words is "one hundred three billion, two hundred twenty million, three hundred twenty-one thousand, two hundred thirteen".