73230121 has 2 divisors, whose sum is σ = 73230122. Its totient is φ = 73230120.

The previous prime is 73230097. The next prime is 73230127. The reversal of 73230121 is 12103237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66650896 + 6579225 = 8164^2 + 2565^2 .

It is a cyclic number.

It is not a de Polignac number, because 73230121 - 2⁹ = 73229609 is a prime.

It is not a weakly prime, because it can be changed into another prime (73230127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36615060 + 36615061.

It is an arithmetic number, because the mean of its divisors is an integer number (36615061).

Almost surely, 2^73230121 is an apocalyptic number.

It is an amenable number.

73230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

73230121 is an equidigital number, since it uses as much as digits as its factorization.

73230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 73230121 is about 8557.4599619280. The cubic root of 73230121 is about 418.3726159345.

Adding to 73230121 its reverse (12103237), we get a palindrome (85333358).

The spelling of 73230121 in words is "seventy-three million, two hundred thirty thousand, one hundred twenty-one".