2123312313 has 8 divisors (see below), whose sum is σ = 2833336800. Its totient is φ = 1414414688.

The previous prime is 2123312281. The next prime is 2123312329. The reversal of 2123312313 is 3132133212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2123312313 - 2⁵ = 2123312281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123312313.

It is not an unprimeable number, because it can be changed into a prime (2123212313) 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 7 ways as a sum of consecutive naturals, for example, 277308 + ... + 284861.

It is an arithmetic number, because the mean of its divisors is an integer number (354167100).

Almost surely, 2^2123312313 is an apocalyptic number.

It is an amenable number.

2123312313 is a deficient number, since it is larger than the sum of its proper divisors (710024487).

2123312313 is a wasteful number, since it uses less digits than its factorization.

2123312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563431.

The product of its digits is 648, while the sum is 21.

The square root of 2123312313 is about 46079.4131147522. The cubic root of 2123312313 is about 1285.3003507923.

Adding to 2123312313 its reverse (3132133212), we get a palindrome (5255445525).

The spelling of 2123312313 in words is "two billion, one hundred twenty-three million, three hundred twelve thousand, three hundred thirteen".