115545352121 has 8 divisors (see below), whose sum is σ = 115780821000. Its totient is φ = 115310067840.

The previous prime is 115545352081. The next prime is 115545352187. The reversal of 115545352121 is 121253545511.

It can be written as a sum of positive squares in 4 ways, for example, as 58825166521 + 56720185600 = 242539^2 + 238160^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115545352121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115545352721) 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, 1243445 + ... + 1333133.

It is an arithmetic number, because the mean of its divisors is an integer number (14472602625).

Almost surely, 2^115545352121 is an apocalyptic number.

It is an amenable number.

115545352121 is a deficient number, since it is larger than the sum of its proper divisors (235468879).

115545352121 is an equidigital number, since it uses as much as digits as its factorization.

115545352121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92299.

The product of its digits is 30000, while the sum is 35.

Adding to 115545352121 its reverse (121253545511), we get a palindrome (236798897632).

The spelling of 115545352121 in words is "one hundred fifteen billion, five hundred forty-five million, three hundred fifty-two thousand, one hundred twenty-one".