13128118084 has 27 divisors (see below), whose sum is σ = 23394292831. Its totient is φ = 6446158280.

The previous prime is 13128118057. The next prime is 13128118109. The reversal of 13128118084 is 48081182131.

The square root of 13128118084 is 114578.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 13519719 + ... + 13520689.

Almost surely, 2^13128118084 is an apocalyptic number.

13128118084 is the 114578-th square number.

It is an amenable number.

13128118084 is a deficient number, since it is larger than the sum of its proper divisors (10266174747).

13128118084 is an frugal number, since it uses more digits than its factorization.

13128118084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 1032 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 37.

The spelling of 13128118084 in words is "thirteen billion, one hundred twenty-eight million, one hundred eighteen thousand, eighty-four".