13155402425121 has 24 divisors (see below), whose sum is σ = 20729874765600. Its totient is φ = 7972913577600.

The previous prime is 13155402425069. The next prime is 13155402425237. The reversal of 13155402425121 is 12152420455131.

13155402425121 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 540 + 2 + 42 + 51 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-13155402425121 is a prime.

It is a super-2 number, since 2×13155402425121² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13155402425621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16213305 + ... + 17005353.

It is an arithmetic number, because the mean of its divisors is an integer number (863744781900).

Almost surely, 2^{13155402425121} is an apocalyptic number.

13155402425121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13155402425121 is a deficient number, since it is larger than the sum of its proper divisors (7574472340479).

13155402425121 is a wasteful number, since it uses less digits than its factorization.

13155402425121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959837 (or 959834 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The spelling of 13155402425121 in words is "thirteen trillion, one hundred fifty-five billion, four hundred two million, four hundred twenty-five thousand, one hundred twenty-one".