128110308553 has 4 divisors (see below), whose sum is σ = 129914679168. Its totient is φ = 126305937940.

The previous prime is 128110308533. The next prime is 128110308559. The reversal of 128110308553 is 355803011821.

It is a happy number.

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 128110308553 - 2¹³ = 128110300361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128110308559) 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, 902185201 + ... + 902185342.

It is an arithmetic number, because the mean of its divisors is an integer number (32478669792).

Almost surely, 2^128110308553 is an apocalyptic number.

It is an amenable number.

128110308553 is a deficient number, since it is larger than the sum of its proper divisors (1804370615).

128110308553 is an equidigital number, since it uses as much as digits as its factorization.

128110308553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804370614.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 128110308553 in words is "one hundred twenty-eight billion, one hundred ten million, three hundred eight thousand, five hundred fifty-three".