121303011313213 has 4 divisors (see below), whose sum is σ = 121652587715040. Its totient is φ = 120953434911388.

The previous prime is 121303011313201. The next prime is 121303011313229. The reversal of 121303011313213 is 312313110303121.

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 121303011313213 - 2³³ = 121294421378621 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 (121303011311213) 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, 174788200393 + ... + 174788201086.

It is an arithmetic number, because the mean of its divisors is an integer number (30413146928760).

Almost surely, 2^{121303011313213} is an apocalyptic number.

It is an amenable number.

121303011313213 is a deficient number, since it is larger than the sum of its proper divisors (349576401827).

121303011313213 is an equidigital number, since it uses as much as digits as its factorization.

121303011313213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349576401826.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 121303011313213 its reverse (312313110303121), we get a palindrome (433616121616334).

The spelling of 121303011313213 in words is "one hundred twenty-one trillion, three hundred three billion, eleven million, three hundred thirteen thousand, two hundred thirteen".