121313241240401 has 4 divisors (see below), whose sum is σ = 138643704274752. Its totient is φ = 103982778206052.

The previous prime is 121313241240341. The next prime is 121313241240439. The reversal of 121313241240401 is 104042142313121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121313241240401 - 2³⁸ = 121038363333457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121313241240001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8665231517165 + ... + 8665231517178.

It is an arithmetic number, because the mean of its divisors is an integer number (34660926068688).

Almost surely, 2^{121313241240401} is an apocalyptic number.

It is an amenable number.

121313241240401 is a deficient number, since it is larger than the sum of its proper divisors (17330463034351).

121313241240401 is an equidigital number, since it uses as much as digits as its factorization.

121313241240401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17330463034350.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 121313241240401 its reverse (104042142313121), we get a palindrome (225355383553522).

The spelling of 121313241240401 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred forty-one million, two hundred forty thousand, four hundred one".