124531223779 has 2 divisors, whose sum is σ = 124531223780. Its totient is φ = 124531223778.

The previous prime is 124531223767. The next prime is 124531223797. The reversal of 124531223779 is 977322135421.

Together with next prime (124531223797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124531223779 - 2³³ = 115941289187 is a prime.

It is not a weakly prime, because it can be changed into another prime (124531223749) 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, 62265611889 + 62265611890.

It is an arithmetic number, because the mean of its divisors is an integer number (62265611890).

Almost surely, 2^124531223779 is an apocalyptic number.

124531223779 is a deficient number, since it is larger than the sum of its proper divisors (1).

124531223779 is an equidigital number, since it uses as much as digits as its factorization.

124531223779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The spelling of 124531223779 in words is "one hundred twenty-four billion, five hundred thirty-one million, two hundred twenty-three thousand, seven hundred seventy-nine".