124630193521 has 2 divisors, whose sum is σ = 124630193522. Its totient is φ = 124630193520.

The previous prime is 124630193509. The next prime is 124630193543. The reversal of 124630193521 is 125391036421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74876660496 + 49753533025 = 273636^2 + 223055^2 .

It is a cyclic number.

It is not a de Polignac number, because 124630193521 - 2³¹ = 122482709873 is a prime.

It is not a weakly prime, because it can be changed into another prime (124630193561) 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, 62315096760 + 62315096761.

It is an arithmetic number, because the mean of its divisors is an integer number (62315096761).

Almost surely, 2^124630193521 is an apocalyptic number.

It is an amenable number.

124630193521 is a deficient number, since it is larger than the sum of its proper divisors (1).

124630193521 is an equidigital number, since it uses as much as digits as its factorization.

124630193521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 124630193521 in words is "one hundred twenty-four billion, six hundred thirty million, one hundred ninety-three thousand, five hundred twenty-one".