135021386012720 has 40 divisors (see below), whose sum is σ = 314947278636144. Its totient is φ = 53832630765312.

The previous prime is 135021386012719. The next prime is 135021386012749. The reversal of 135021386012720 is 27210683120531.

135021386012720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×135021386012720³ (a number of 43 digits) contains 333 as substring.

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, 2748782159 + ... + 2748831278.

Almost surely, 2^{135021386012720} is an apocalyptic number.

135021386012720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135021386012720 is an abundant number, since it is smaller than the sum of its proper divisors (179925892623424).

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

135021386012720 is a wasteful number, since it uses less digits than its factorization.

135021386012720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497613757 (or 5497613751 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 135021386012720 in words is "one hundred thirty-five trillion, twenty-one billion, three hundred eighty-six million, twelve thousand, seven hundred twenty".