121303320210013 has 4 divisors (see below), whose sum is σ = 121303849065660. Its totient is φ = 121302791354368.

The previous prime is 121303320209969. The next prime is 121303320210019. The reversal of 121303320210013 is 310012023303121.

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 48070066494564 + 73233253715449 = 6933258^2 + 8557643^2 .

It is a cyclic number.

It is not a de Polignac number, because 121303320210013 - 2⁹ = 121303320209501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303320210019) 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, 264083620 + ... + 264542557.

It is an arithmetic number, because the mean of its divisors is an integer number (30325962266415).

Almost surely, 2^{121303320210013} is an apocalyptic number.

It is an amenable number.

121303320210013 is a deficient number, since it is larger than the sum of its proper divisors (528855647).

121303320210013 is an equidigital number, since it uses as much as digits as its factorization.

121303320210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528855646.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121303320210013 its reverse (310012023303121), we get a palindrome (431315343513134).

The spelling of 121303320210013 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred twenty million, two hundred ten thousand, thirteen".