123730253 has 2 divisors, whose sum is σ = 123730254. Its totient is φ = 123730252.

The previous prime is 123730247. The next prime is 123730259. The reversal of 123730253 is 352037321.

It is a balanced prime because it is at equal distance from previous prime (123730247) and next prime (123730259).

It can be written as a sum of positive squares in only one way, i.e., 108222409 + 15507844 = 10403^2 + 3938^2 .

It is an emirp because it is prime and its reverse (352037321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123730253 - 2⁴ = 123730237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123730259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61865126 + 61865127.

It is an arithmetic number, because the mean of its divisors is an integer number (61865127).

Almost surely, 2^123730253 is an apocalyptic number.

It is an amenable number.

123730253 is a deficient number, since it is larger than the sum of its proper divisors (1).

123730253 is an equidigital number, since it uses as much as digits as its factorization.

123730253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 123730253 is about 11123.4101335876. The cubic root of 123730253 is about 498.3012389582.

Adding to 123730253 its reverse (352037321), we get a palindrome (475767574).

The spelling of 123730253 in words is "one hundred twenty-three million, seven hundred thirty thousand, two hundred fifty-three".