2313313210121 has 4 divisors (see below), whose sum is σ = 2320610728452. Its totient is φ = 2306015691792.

The previous prime is 2313313210099. The next prime is 2313313210123. The reversal of 2313313210121 is 1210123133132.

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 1391692090000 + 921621120121 = 1179700^2 + 960011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313313210121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313313210123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3648758690 + ... + 3648759323.

It is an arithmetic number, because the mean of its divisors is an integer number (580152682113).

Almost surely, 2^{2313313210121} is an apocalyptic number.

It is an amenable number.

2313313210121 is a deficient number, since it is larger than the sum of its proper divisors (7297518331).

2313313210121 is an equidigital number, since it uses as much as digits as its factorization.

2313313210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297518330.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2313313210121 its reverse (1210123133132), we get a palindrome (3523436343253).

The spelling of 2313313210121 in words is "two trillion, three hundred thirteen billion, three hundred thirteen million, two hundred ten thousand, one hundred twenty-one".