124205425361 has 2 divisors, whose sum is σ = 124205425362. Its totient is φ = 124205425360.

The previous prime is 124205425327. The next prime is 124205425397. The reversal of 124205425361 is 163524502421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109375056961 + 14830368400 = 330719^2 + 121780^2 .

It is a cyclic number.

It is not a de Polignac number, because 124205425361 - 2²² = 124201231057 is a prime.

It is not a weakly prime, because it can be changed into another prime (124205425061) 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, 62102712680 + 62102712681.

It is an arithmetic number, because the mean of its divisors is an integer number (62102712681).

Almost surely, 2^124205425361 is an apocalyptic number.

It is an amenable number.

124205425361 is a deficient number, since it is larger than the sum of its proper divisors (1).

124205425361 is an equidigital number, since it uses as much as digits as its factorization.

124205425361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 124205425361 its reverse (163524502421), we get a palindrome (287729927782).

The spelling of 124205425361 in words is "one hundred twenty-four billion, two hundred five million, four hundred twenty-five thousand, three hundred sixty-one".