124512514561 has 2 divisors, whose sum is σ = 124512514562. Its totient is φ = 124512514560.

The previous prime is 124512514519. The next prime is 124512514573. The reversal of 124512514561 is 165415215421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123162393025 + 1350121536 = 350945^2 + 36744^2 .

It is a cyclic number.

It is not a de Polignac number, because 124512514561 - 2⁷ = 124512514433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124512514561.

It is not a weakly prime, because it can be changed into another prime (124512514591) 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, 62256257280 + 62256257281.

It is an arithmetic number, because the mean of its divisors is an integer number (62256257281).

Almost surely, 2^124512514561 is an apocalyptic number.

It is an amenable number.

124512514561 is a deficient number, since it is larger than the sum of its proper divisors (1).

124512514561 is an equidigital number, since it uses as much as digits as its factorization.

124512514561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 37.

Adding to 124512514561 its reverse (165415215421), we get a palindrome (289927729982).

The spelling of 124512514561 in words is "one hundred twenty-four billion, five hundred twelve million, five hundred fourteen thousand, five hundred sixty-one".