103313020221 has 12 divisors (see below), whose sum is σ = 149404876348. Its totient is φ = 68794596864.

The previous prime is 103313020183. The next prime is 103313020253. The reversal of 103313020221 is 122020313301.

103313020221 is a `hidden beast` number, since 10 + 331 + 302 + 0 + 2 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62507000196 + 40806020025 = 250014^2 + 202005^2 .

It is not a de Polignac number, because 103313020221 - 2¹³ = 103313012029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103313020194 and 103313020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103313020271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6721060 + ... + 6736413.

Almost surely, 2^103313020221 is an apocalyptic number.

It is an amenable number.

103313020221 is a deficient number, since it is larger than the sum of its proper divisors (46091856127).

103313020221 is a wasteful number, since it uses less digits than its factorization.

103313020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13458332 (or 13458329 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103313020221 its reverse (122020313301), we get a palindrome (225333333522).

The spelling of 103313020221 in words is "one hundred three billion, three hundred thirteen million, twenty thousand, two hundred twenty-one".