103230121 has 4 divisors (see below), whose sum is σ = 104390100. Its totient is φ = 102070144.

The previous prime is 103230109. The next prime is 103230131. The reversal of 103230121 is 121032301.

103230121 = 484² + 485² + ... + 750².

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 32080896 + 71149225 = 5664^2 + 8435^2 .

It is a cyclic number.

It is not a de Polignac number, because 103230121 - 2⁵ = 103230089 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103230131) 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, 579856 + ... + 580033.

It is an arithmetic number, because the mean of its divisors is an integer number (26097525).

Almost surely, 2^103230121 is an apocalyptic number.

It is an amenable number.

103230121 is a deficient number, since it is larger than the sum of its proper divisors (1159979).

103230121 is an equidigital number, since it uses as much as digits as its factorization.

103230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159978.

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

The square root of 103230121 is about 10160.2224877214. Note that the first 3 decimals coincide. The cubic root of 103230121 is about 469.1036500153.

Adding to 103230121 its reverse (121032301), we get a palindrome (224262422).

The spelling of 103230121 in words is "one hundred three million, two hundred thirty thousand, one hundred twenty-one".