123444140201 has 2 divisors, whose sum is σ = 123444140202. Its totient is φ = 123444140200.

The previous prime is 123444140191. The next prime is 123444140207. The reversal of 123444140201 is 102041444321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75596952601 + 47847187600 = 274949^2 + 218740^2 .

It is an emirp because it is prime and its reverse (102041444321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123444140201 - 2¹⁰ = 123444139177 is a prime.

It is not a weakly prime, because it can be changed into another prime (123444140207) 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, 61722070100 + 61722070101.

It is an arithmetic number, because the mean of its divisors is an integer number (61722070101).

Almost surely, 2^123444140201 is an apocalyptic number.

It is an amenable number.

123444140201 is a deficient number, since it is larger than the sum of its proper divisors (1).

123444140201 is an equidigital number, since it uses as much as digits as its factorization.

123444140201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 123444140201 its reverse (102041444321), we get a palindrome (225485584522).

The spelling of 123444140201 in words is "one hundred twenty-three billion, four hundred forty-four million, one hundred forty thousand, two hundred one".