2313121121113 has 4 divisors (see below), whose sum is σ = 2523404859408. Its totient is φ = 2102837382820.

The previous prime is 2313121121111. The next prime is 2313121121123. The reversal of 2313121121113 is 3111211213132.

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 2313121121113 - 2¹ = 2313121121111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2313121121111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105141869131 + ... + 105141869152.

It is an arithmetic number, because the mean of its divisors is an integer number (630851214852).

Almost surely, 2^{2313121121113} is an apocalyptic number.

It is an amenable number.

2313121121113 is a deficient number, since it is larger than the sum of its proper divisors (210283738295).

2313121121113 is a wasteful number, since it uses less digits than its factorization.

2313121121113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210283738294.

The product of its digits is 216, while the sum is 22.

Adding to 2313121121113 its reverse (3111211213132), we get a palindrome (5424332334245).

The spelling of 2313121121113 in words is "two trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred thirteen".