12555310135121 has 8 divisors (see below), whose sum is σ = 13521219687360. Its totient is φ = 11589417220752.

The previous prime is 12555310135087. The next prime is 12555310135141. The reversal of 12555310135121 is 12153101355521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12555310135121 - 2²⁶ = 12555243026257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12555310135141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2569661 + ... + 5631498.

It is an arithmetic number, because the mean of its divisors is an integer number (1690152460920).

Almost surely, 2^{12555310135121} is an apocalyptic number.

It is an amenable number.

12555310135121 is a deficient number, since it is larger than the sum of its proper divisors (965909552239).

12555310135121 is a wasteful number, since it uses less digits than its factorization.

12555310135121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318935.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 12555310135121 in words is "twelve trillion, five hundred fifty-five billion, three hundred ten million, one hundred thirty-five thousand, one hundred twenty-one".