12117261710151 has 24 divisors (see below), whose sum is σ = 19287424332176. Its totient is φ = 7283363028480.

The previous prime is 12117261710123. The next prime is 12117261710171. The reversal of 12117261710151 is 15101716271121.

12117261710151 is a `hidden beast` number, since 1 + 2 + 1 + 17 + 2 + 617 + 10 + 15 + 1 = 666.

It is not a de Polignac number, because 12117261710151 - 2¹⁹ = 12117261185863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12117261710171) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1204254730 + ... + 1204264791.

Almost surely, 2^{12117261710151} is an apocalyptic number.

12117261710151 is a deficient number, since it is larger than the sum of its proper divisors (7170162622025).

12117261710151 is a wasteful number, since it uses less digits than its factorization.

12117261710151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408519583 (or 2408519580 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 36.

Adding to 12117261710151 its reverse (15101716271121), we get a palindrome (27218977981272).

The spelling of 12117261710151 in words is "twelve trillion, one hundred seventeen billion, two hundred sixty-one million, seven hundred ten thousand, one hundred fifty-one".