125603805923 has 2 divisors, whose sum is σ = 125603805924. Its totient is φ = 125603805922.

The previous prime is 125603805883. The next prime is 125603805931. The reversal of 125603805923 is 329508306521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125603805923 - 2¹⁶ = 125603740387 is a prime.

It is not a weakly prime, because it can be changed into another prime (125603805323) 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, 62801902961 + 62801902962.

It is an arithmetic number, because the mean of its divisors is an integer number (62801902962).

Almost surely, 2^125603805923 is an apocalyptic number.

125603805923 is a deficient number, since it is larger than the sum of its proper divisors (1).

125603805923 is an equidigital number, since it uses as much as digits as its factorization.

125603805923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 125603805923 in words is "one hundred twenty-five billion, six hundred three million, eight hundred five thousand, nine hundred twenty-three".