138018301312 has 32 divisors (see below), whose sum is σ = 281664646200. Its totient is φ = 67325998080.

The previous prime is 138018301193. The next prime is 138018301313. The reversal of 138018301312 is 213103810831.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138018301313) 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, 13144362 + ... + 13154857.

Almost surely, 2^138018301312 is an apocalyptic number.

It is an amenable number.

138018301312 is an abundant number, since it is smaller than the sum of its proper divisors (143646344888).

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

138018301312 is an equidigital number, since it uses as much as digits as its factorization.

138018301312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26299274 (or 26299262 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 138018301312 in words is "one hundred thirty-eight billion, eighteen million, three hundred one thousand, three hundred twelve".