103113101221 has 4 divisors (see below), whose sum is σ = 111044878252. Its totient is φ = 95181324192.

The previous prime is 103113101209. The next prime is 103113101227. The reversal of 103113101221 is 122101311301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20491922500 + 82621178721 = 143150^2 + 287439^2 .

It is a cyclic number.

It is not a de Polignac number, because 103113101221 - 2⁹ = 103113100709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103113101195 and 103113101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103113101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3965888496 + ... + 3965888521.

It is an arithmetic number, because the mean of its divisors is an integer number (27761219563).

Almost surely, 2^103113101221 is an apocalyptic number.

It is an amenable number.

103113101221 is a deficient number, since it is larger than the sum of its proper divisors (7931777031).

103113101221 is an equidigital number, since it uses as much as digits as its factorization.

103113101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7931777030.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 103113101221 its reverse (122101311301), we get a palindrome (225214412522).

The spelling of 103113101221 in words is "one hundred three billion, one hundred thirteen million, one hundred one thousand, two hundred twenty-one".