123210133 has 2 divisors, whose sum is σ = 123210134. Its totient is φ = 123210132.

The previous prime is 123210121. The next prime is 123210161. The reversal of 123210133 is 331012321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118875409 + 4334724 = 10903^2 + 2082^2 .

It is a cyclic number.

It is not a de Polignac number, because 123210133 - 2⁹ = 123209621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123210163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61605066 + 61605067.

It is an arithmetic number, because the mean of its divisors is an integer number (61605067).

Almost surely, 2^123210133 is an apocalyptic number.

It is an amenable number.

123210133 is a deficient number, since it is larger than the sum of its proper divisors (1).

123210133 is an equidigital number, since it uses as much as digits as its factorization.

123210133 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 123210133 is about 11100.0059909894. The cubic root of 123210133 is about 497.6020285175.

Adding to 123210133 its reverse (331012321), we get a palindrome (454222454).

The spelling of 123210133 in words is "one hundred twenty-three million, two hundred ten thousand, one hundred thirty-three".