124354520030861 has 2 divisors, whose sum is σ = 124354520030862. Its totient is φ = 124354520030860.

The previous prime is 124354520030849. The next prime is 124354520031043. The reversal of 124354520030861 is 168030025453421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92067191377225 + 32287328653636 = 9595165^2 + 5682194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124354520030861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124354520030161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62177260015430 + 62177260015431.

It is an arithmetic number, because the mean of its divisors is an integer number (62177260015431).

Almost surely, 2^{124354520030861} is an apocalyptic number.

It is an amenable number.

124354520030861 is a deficient number, since it is larger than the sum of its proper divisors (1).

124354520030861 is an equidigital number, since it uses as much as digits as its factorization.

124354520030861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 691200, while the sum is 44.

The spelling of 124354520030861 in words is "one hundred twenty-four trillion, three hundred fifty-four billion, five hundred twenty million, thirty thousand, eight hundred sixty-one".