127256129988371 has 2 divisors, whose sum is σ = 127256129988372. Its totient is φ = 127256129988370.

The previous prime is 127256129988341. The next prime is 127256129988431. The reversal of 127256129988371 is 173889921652721.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127256129988371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127256129988295 and 127256129988304.

It is not a weakly prime, because it can be changed into another prime (127256129988301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63628064994185 + 63628064994186.

It is an arithmetic number, because the mean of its divisors is an integer number (63628064994186).

Almost surely, 2^{127256129988371} is an apocalyptic number.

127256129988371 is a deficient number, since it is larger than the sum of its proper divisors (1).

127256129988371 is an equidigital number, since it uses as much as digits as its factorization.

127256129988371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 182891520, while the sum is 71.

The spelling of 127256129988371 in words is "one hundred twenty-seven trillion, two hundred fifty-six billion, one hundred twenty-nine million, nine hundred eighty-eight thousand, three hundred seventy-one".