115543414203121 has 4 divisors (see below), whose sum is σ = 122340085626852. Its totient is φ = 108746742779392.

The previous prime is 115543414203083. The next prime is 115543414203163. The reversal of 115543414203121 is 121302414345511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93285173480625 + 22258240722496 = 9658425^2 + 4717864^2 .

It is a cyclic number.

It is not a de Polignac number, because 115543414203121 - 2⁹ = 115543414202609 is a prime.

It is a super-2 number, since 2×115543414203121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115543414293121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3398335711840 + ... + 3398335711873.

It is an arithmetic number, because the mean of its divisors is an integer number (30585021406713).

Almost surely, 2^{115543414203121} is an apocalyptic number.

It is an amenable number.

115543414203121 is a deficient number, since it is larger than the sum of its proper divisors (6796671423731).

115543414203121 is an equidigital number, since it uses as much as digits as its factorization.

115543414203121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6796671423730.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 115543414203121 its reverse (121302414345511), we get a palindrome (236845828548632).

The spelling of 115543414203121 in words is "one hundred fifteen trillion, five hundred forty-three billion, four hundred fourteen million, two hundred three thousand, one hundred twenty-one".