124113435421121 has 2 divisors, whose sum is σ = 124113435421122. Its totient is φ = 124113435421120.

The previous prime is 124113435421037. The next prime is 124113435421127. The reversal of 124113435421121 is 121124534311421.

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., 104946420080896 + 19167015340225 = 10244336^2 + 4378015^2 .

It is a cyclic number.

It is not a de Polignac number, because 124113435421121 - 2⁴² = 119715388910017 is a prime.

It is a super-2 number, since 2×124113435421121² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124113435421127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62056717710560 + 62056717710561.

It is an arithmetic number, because the mean of its divisors is an integer number (62056717710561).

Almost surely, 2^{124113435421121} is an apocalyptic number.

It is an amenable number.

124113435421121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124113435421121 is an equidigital number, since it uses as much as digits as its factorization.

124113435421121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

Adding to 124113435421121 its reverse (121124534311421), we get a palindrome (245237969732542).

The spelling of 124113435421121 in words is "one hundred twenty-four trillion, one hundred thirteen billion, four hundred thirty-five million, four hundred twenty-one thousand, one hundred twenty-one".