128523031303688 has 32 divisors (see below), whose sum is σ = 275805057956160. Its totient is φ = 55001586669120.

The previous prime is 128523031303673. The next prime is 128523031303729. The reversal of 128523031303688 is 886303130325821.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660637231 + ... + 1660714622.

It is an arithmetic number, because the mean of its divisors is an integer number (8618908061130).

Almost surely, 2^{128523031303688} is an apocalyptic number.

It is an amenable number.

128523031303688 is an abundant number, since it is smaller than the sum of its proper divisors (147282026652472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128523031303688 is a wasteful number, since it uses less digits than its factorization.

128523031303688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321352557 (or 3321352553 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 128523031303688 in words is "one hundred twenty-eight trillion, five hundred twenty-three billion, thirty-one million, three hundred three thousand, six hundred eighty-eight".