123101100253 has 2 divisors, whose sum is σ = 123101100254. Its totient is φ = 123101100252.

The previous prime is 123101100217. The next prime is 123101100259. The reversal of 123101100253 is 352001101321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119513329849 + 3587770404 = 345707^2 + 59898^2 .

It is a cyclic number.

It is not a de Polignac number, because 123101100253 - 2⁹ = 123101099741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123101100253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123101100259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61550550126 + 61550550127.

It is an arithmetic number, because the mean of its divisors is an integer number (61550550127).

Almost surely, 2^123101100253 is an apocalyptic number.

It is an amenable number.

123101100253 is a deficient number, since it is larger than the sum of its proper divisors (1).

123101100253 is an equidigital number, since it uses as much as digits as its factorization.

123101100253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 123101100253 its reverse (352001101321), we get a palindrome (475102201574).

The spelling of 123101100253 in words is "one hundred twenty-three billion, one hundred one million, one hundred thousand, two hundred fifty-three".