123142042253 has 2 divisors, whose sum is σ = 123142042254. Its totient is φ = 123142042252.

The previous prime is 123142042237. The next prime is 123142042277. The reversal of 123142042253 is 352240241321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118719526249 + 4422516004 = 344557^2 + 66502^2 .

It is an emirp because it is prime and its reverse (352240241321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123142042253 - 2⁴ = 123142042237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123142042213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61571021126 + 61571021127.

It is an arithmetic number, because the mean of its divisors is an integer number (61571021127).

Almost surely, 2^123142042253 is an apocalyptic number.

It is an amenable number.

123142042253 is a deficient number, since it is larger than the sum of its proper divisors (1).

123142042253 is an equidigital number, since it uses as much as digits as its factorization.

123142042253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 123142042253 its reverse (352240241321), we get a palindrome (475382283574).

The spelling of 123142042253 in words is "one hundred twenty-three billion, one hundred forty-two million, forty-two thousand, two hundred fifty-three".