133230121 has 2 divisors, whose sum is σ = 133230122. Its totient is φ = 133230120.

The previous prime is 133230091. The next prime is 133230131. The reversal of 133230121 is 121032331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 404496 = 11525^2 + 636^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133230121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133230095 and 133230104.

It is not a weakly prime, because it can be changed into another prime (133230131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66615060 + 66615061.

It is an arithmetic number, because the mean of its divisors is an integer number (66615061).

Almost surely, 2^133230121 is an apocalyptic number.

It is an amenable number.

133230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

133230121 is an equidigital number, since it uses as much as digits as its factorization.

133230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133230121 is about 11542.5352934267. The cubic root of 133230121 is about 510.7410999262.

Adding to 133230121 its reverse (121032331), we get a palindrome (254262452).

The spelling of 133230121 in words is "one hundred thirty-three million, two hundred thirty thousand, one hundred twenty-one".