124679023561 has 2 divisors, whose sum is σ = 124679023562. Its totient is φ = 124679023560.

The previous prime is 124679023499. The next prime is 124679023589. The reversal of 124679023561 is 165320976421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124492537225 + 186486336 = 352835^2 + 13656^2 .

It is an emirp because it is prime and its reverse (165320976421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124679023561 - 2²⁹ = 124142152649 is a prime.

It is a super-2 number, since 2×124679023561² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124679023591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62339511780 + 62339511781.

It is an arithmetic number, because the mean of its divisors is an integer number (62339511781).

Almost surely, 2^124679023561 is an apocalyptic number.

It is an amenable number.

124679023561 is a deficient number, since it is larger than the sum of its proper divisors (1).

124679023561 is an equidigital number, since it uses as much as digits as its factorization.

124679023561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 46.

Adding to 124679023561 its reverse (165320976421), we get a palindrome (289999999982).

The spelling of 124679023561 in words is "one hundred twenty-four billion, six hundred seventy-nine million, twenty-three thousand, five hundred sixty-one".