121543651060125 has 64 divisors (see below), whose sum is σ = 235058946969600. Its totient is φ = 54621069268800.

The previous prime is 121543651060093. The next prime is 121543651060157. The reversal of 121543651060125 is 521060156345121.

It is an interprime number because it is at equal distance from previous prime (121543651060093) and next prime (121543651060157).

It is not a de Polignac number, because 121543651060125 - 2⁵ = 121543651060093 is a prime.

It is a super-2 number, since 2×121543651060125² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 392237865 + ... + 392547614.

It is an arithmetic number, because the mean of its divisors is an integer number (3672796046400).

Almost surely, 2^{121543651060125} is an apocalyptic number.

121543651060125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121543651060125 is a deficient number, since it is larger than the sum of its proper divisors (113515295909475).

121543651060125 is an equidigital number, since it uses as much as digits as its factorization.

121543651060125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784785563 (or 784785553 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 121543651060125 in words is "one hundred twenty-one trillion, five hundred forty-three billion, six hundred fifty-one million, sixty thousand, one hundred twenty-five".