127121475363 has 4 divisors (see below), whose sum is σ = 169495300488. Its totient is φ = 84747650240.

The previous prime is 127121475361. The next prime is 127121475391. The reversal of 127121475363 is 363574121721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127121475363 - 2¹ = 127121475361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127121475361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21186912558 + ... + 21186912563.

It is an arithmetic number, because the mean of its divisors is an integer number (42373825122).

Almost surely, 2^127121475363 is an apocalyptic number.

127121475363 is a deficient number, since it is larger than the sum of its proper divisors (42373825125).

127121475363 is an equidigital number, since it uses as much as digits as its factorization.

127121475363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42373825124.

The product of its digits is 211680, while the sum is 42.

The spelling of 127121475363 in words is "one hundred twenty-seven billion, one hundred twenty-one million, four hundred seventy-five thousand, three hundred sixty-three".