124312123189 has 2 divisors, whose sum is σ = 124312123190. Its totient is φ = 124312123188.

The previous prime is 124312123153. The next prime is 124312123207. The reversal of 124312123189 is 981321213421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66239316900 + 58072806289 = 257370^2 + 240983^2 .

It is a cyclic number.

It is not a de Polignac number, because 124312123189 - 2³³ = 115722188597 is a prime.

It is a super-2 number, since 2×124312123189² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124312123129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62156061594 + 62156061595.

It is an arithmetic number, because the mean of its divisors is an integer number (62156061595).

Almost surely, 2^124312123189 is an apocalyptic number.

It is an amenable number.

124312123189 is a deficient number, since it is larger than the sum of its proper divisors (1).

124312123189 is an equidigital number, since it uses as much as digits as its factorization.

124312123189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The spelling of 124312123189 in words is "one hundred twenty-four billion, three hundred twelve million, one hundred twenty-three thousand, one hundred eighty-nine".