124320103121 has 2 divisors, whose sum is σ = 124320103122. Its totient is φ = 124320103120.

The previous prime is 124320103111. The next prime is 124320103123. The reversal of 124320103121 is 121301023421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109517974225 + 14802128896 = 330935^2 + 121664^2 .

It is a cyclic number.

It is not a de Polignac number, because 124320103121 - 2¹⁰ = 124320102097 is a prime.

Together with 124320103123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 124320103093 and 124320103102.

It is not a weakly prime, because it can be changed into another prime (124320103123) 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, 62160051560 + 62160051561.

It is an arithmetic number, because the mean of its divisors is an integer number (62160051561).

Almost surely, 2^124320103121 is an apocalyptic number.

It is an amenable number.

124320103121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124320103121 is an equidigital number, since it uses as much as digits as its factorization.

124320103121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 124320103121 its reverse (121301023421), we get a palindrome (245621126542).

The spelling of 124320103121 in words is "one hundred twenty-four billion, three hundred twenty million, one hundred three thousand, one hundred twenty-one".