128023373384 has 24 divisors (see below), whose sum is σ = 243472419030. Its totient is φ = 63110093760.

The previous prime is 128023373363. The next prime is 128023373389. The reversal of 128023373384 is 483373320821.

It can be written as a sum of positive squares in only one way, i.e., 120146810884 + 7876562500 = 346622^2 + 88750^2 .

It is a super-2 number, since 2×128023373384² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128023373389) 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 5 ways as a sum of consecutive naturals, for example, 1546949 + ... + 1627604.

Almost surely, 2^128023373384 is an apocalyptic number.

It is an amenable number.

128023373384 is a deficient number, since it is larger than the sum of its proper divisors (115449045646).

128023373384 is an equidigital number, since it uses as much as digits as its factorization.

128023373384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174701 (or 3174626 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 128023373384 in words is "one hundred twenty-eight billion, twenty-three million, three hundred seventy-three thousand, three hundred eighty-four".