121510243512241 has 8 divisors (see below), whose sum is σ = 130103499333960. Its totient is φ = 113077609294848.

The previous prime is 121510243512239. The next prime is 121510243512253. The reversal of 121510243512241 is 142215342015121.

It can be written as a sum of positive squares in 4 ways, for example, as 7171684000000 + 114338559512241 = 2678000^2 + 10692921^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 121510243512241 - 2¹ = 121510243512239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121510243512197 and 121510243512206.

It is not an unprimeable number, because it can be changed into a prime (121510243512341) 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, 40155399516 + ... + 40155402541.

It is an arithmetic number, because the mean of its divisors is an integer number (16262937416745).

Almost surely, 2^{121510243512241} is an apocalyptic number.

It is an amenable number.

121510243512241 is a deficient number, since it is larger than the sum of its proper divisors (8593255821719).

121510243512241 is an equidigital number, since it uses as much as digits as its factorization.

121510243512241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80310802163.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 121510243512241 its reverse (142215342015121), we get a palindrome (263725585527362).

The spelling of 121510243512241 in words is "one hundred twenty-one trillion, five hundred ten billion, two hundred forty-three million, five hundred twelve thousand, two hundred forty-one".