124535451552121 has 2 divisors, whose sum is σ = 124535451552122. Its totient is φ = 124535451552120.

The previous prime is 124535451552097. The next prime is 124535451552157. The reversal of 124535451552121 is 121255154535421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103115170030096 + 21420281522025 = 10154564^2 + 4628205^2 .

It is an emirp because it is prime and its reverse (121255154535421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124535451552121 - 2³⁵ = 124501091813753 is a prime.

It is not a weakly prime, because it can be changed into another prime (124535451558121) 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, 62267725776060 + 62267725776061.

It is an arithmetic number, because the mean of its divisors is an integer number (62267725776061).

Almost surely, 2^{124535451552121} is an apocalyptic number.

It is an amenable number.

124535451552121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124535451552121 is an equidigital number, since it uses as much as digits as its factorization.

124535451552121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200000, while the sum is 46.

The spelling of 124535451552121 in words is "one hundred twenty-four trillion, five hundred thirty-five billion, four hundred fifty-one million, five hundred fifty-two thousand, one hundred twenty-one".