127253640765101 has 4 divisors (see below), whose sum is σ = 132786407754912. Its totient is φ = 121720873775292.

The previous prime is 127253640765089. The next prime is 127253640765191. The reversal of 127253640765101 is 101567046352721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127253640765101 - 2¹⁰ = 127253640764077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127253640765101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127253640765191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2766383494871 + ... + 2766383494916.

It is an arithmetic number, because the mean of its divisors is an integer number (33196601938728).

Almost surely, 2^{127253640765101} is an apocalyptic number.

It is an amenable number.

127253640765101 is a deficient number, since it is larger than the sum of its proper divisors (5532766989811).

127253640765101 is an equidigital number, since it uses as much as digits as its factorization.

127253640765101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532766989810.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 127253640765101 in words is "one hundred twenty-seven trillion, two hundred fifty-three billion, six hundred forty million, seven hundred sixty-five thousand, one hundred one".