121351120241 has 4 divisors (see below), whose sum is σ = 130685821812. Its totient is φ = 112016418672.

The previous prime is 121351120229. The next prime is 121351120283. The reversal of 121351120241 is 142021153121.

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 6646977841 + 114704142400 = 81529^2 + 338680^2 .

It is a cyclic number.

It is not a de Polignac number, because 121351120241 - 2²⁶ = 121284011377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121351120211) 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, 4667350766 + ... + 4667350791.

It is an arithmetic number, because the mean of its divisors is an integer number (32671455453).

Almost surely, 2^121351120241 is an apocalyptic number.

It is an amenable number.

121351120241 is a deficient number, since it is larger than the sum of its proper divisors (9334701571).

121351120241 is an equidigital number, since it uses as much as digits as its factorization.

121351120241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9334701570.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 121351120241 its reverse (142021153121), we get a palindrome (263372273362).

The spelling of 121351120241 in words is "one hundred twenty-one billion, three hundred fifty-one million, one hundred twenty thousand, two hundred forty-one".