103013221 has 4 divisors (see below), whose sum is σ = 103036032. Its totient is φ = 102990412.

The previous prime is 103013219. The next prime is 103013243. The reversal of 103013221 is 122310301.

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 103013221 - 2¹ = 103013219 is a prime.

It is a super-2 number, since 2×103013221² = 21223447401589682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103013921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101 + ... + 14506.

It is an arithmetic number, because the mean of its divisors is an integer number (25759008).

Almost surely, 2^103013221 is an apocalyptic number.

It is an amenable number.

103013221 is a deficient number, since it is larger than the sum of its proper divisors (22811).

103013221 is an equidigital number, since it uses as much as digits as its factorization.

103013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22810.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103013221 is about 10149.5428961111. The cubic root of 103013221 is about 468.7748702419.

Adding to 103013221 its reverse (122310301), we get a palindrome (225323522).

The spelling of 103013221 in words is "one hundred three million, thirteen thousand, two hundred twenty-one".