2313121031213 has 16 divisors (see below), whose sum is σ = 2370959579520. Its totient is φ = 2255955936000.

The previous prime is 2313121031171. The next prime is 2313121031233. The reversal of 2313121031213 is 3121301213132.

It is a cyclic number.

It is not a de Polignac number, because 2313121031213 - 2⁶ = 2313121031149 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 (2313121031233) 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 15 ways as a sum of consecutive naturals, for example, 4908113 + ... + 5358713.

It is an arithmetic number, because the mean of its divisors is an integer number (148184973720).

Almost surely, 2^{2313121031213} is an apocalyptic number.

It is an amenable number.

2313121031213 is a deficient number, since it is larger than the sum of its proper divisors (57838548307).

2313121031213 is a wasteful number, since it uses less digits than its factorization.

2313121031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451348.

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

Adding to 2313121031213 its reverse (3121301213132), we get a palindrome (5434422244345).

The spelling of 2313121031213 in words is "two trillion, three hundred thirteen billion, one hundred twenty-one million, thirty-one thousand, two hundred thirteen".