125143321917827 has 2 divisors, whose sum is σ = 125143321917828. Its totient is φ = 125143321917826.

The previous prime is 125143321917811. The next prime is 125143321917833. The reversal of 125143321917827 is 728719123341521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125143321917827 - 2⁴ = 125143321917811 is a prime.

It is not a weakly prime, because it can be changed into another prime (125143321977827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62571660958913 + 62571660958914.

It is an arithmetic number, because the mean of its divisors is an integer number (62571660958914).

Almost surely, 2^{125143321917827} is an apocalyptic number.

125143321917827 is a deficient number, since it is larger than the sum of its proper divisors (1).

125143321917827 is an equidigital number, since it uses as much as digits as its factorization.

125143321917827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The spelling of 125143321917827 in words is "one hundred twenty-five trillion, one hundred forty-three billion, three hundred twenty-one million, nine hundred seventeen thousand, eight hundred twenty-seven".