123125135593 has 2 divisors, whose sum is σ = 123125135594. Its totient is φ = 123125135592.

The previous prime is 123125135543. The next prime is 123125135611. The reversal of 123125135593 is 395531521321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79449569424 + 43675566169 = 281868^2 + 208987^2 .

It is a cyclic number.

It is not a de Polignac number, because 123125135593 - 2¹⁷ = 123125004521 is a prime.

It is not a weakly prime, because it can be changed into another prime (123125135533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562567796 + 61562567797.

It is an arithmetic number, because the mean of its divisors is an integer number (61562567797).

Almost surely, 2^123125135593 is an apocalyptic number.

It is an amenable number.

123125135593 is a deficient number, since it is larger than the sum of its proper divisors (1).

123125135593 is an equidigital number, since it uses as much as digits as its factorization.

123125135593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 121500, while the sum is 40.

The spelling of 123125135593 in words is "one hundred twenty-three billion, one hundred twenty-five million, one hundred thirty-five thousand, five hundred ninety-three".