128215110052 has 12 divisors (see below), whose sum is σ = 231614392576. Its totient is φ = 62039569320.

The previous prime is 128215110047. The next prime is 128215110061. The reversal of 128215110052 is 250011512821.

It is a happy number.

128215110052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×128215110052² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128215110052.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516996288 + ... + 516996535.

Almost surely, 2^128215110052 is an apocalyptic number.

It is an amenable number.

128215110052 is a deficient number, since it is larger than the sum of its proper divisors (103399282524).

128215110052 is a wasteful number, since it uses less digits than its factorization.

128215110052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033992858 (or 1033992856 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 28.

Adding to 128215110052 its reverse (250011512821), we get a palindrome (378226622873).

The spelling of 128215110052 in words is "one hundred twenty-eight billion, two hundred fifteen million, one hundred ten thousand, fifty-two".