122340123253 has 2 divisors, whose sum is σ = 122340123254. Its totient is φ = 122340123252.

The previous prime is 122340123203. The next prime is 122340123271. The reversal of 122340123253 is 352321043221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106124138289 + 16215984964 = 325767^2 + 127342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122340123253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122340123203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61170061626 + 61170061627.

It is an arithmetic number, because the mean of its divisors is an integer number (61170061627).

Almost surely, 2^122340123253 is an apocalyptic number.

It is an amenable number.

122340123253 is a deficient number, since it is larger than the sum of its proper divisors (1).

122340123253 is an equidigital number, since it uses as much as digits as its factorization.

122340123253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 122340123253 its reverse (352321043221), we get a palindrome (474661166474).

The spelling of 122340123253 in words is "one hundred twenty-two billion, three hundred forty million, one hundred twenty-three thousand, two hundred fifty-three".