2013112321 has 4 divisors (see below), whose sum is σ = 2196122544. Its totient is φ = 1830102100.

The previous prime is 2013112291. The next prime is 2013112337. The reversal of 2013112321 is 1232113102.

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 2013112321 - 2¹¹ = 2013110273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013112295 and 2013112304.

It is not an unprimeable number, because it can be changed into a prime (2013112121) 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, 91505095 + ... + 91505116.

It is an arithmetic number, because the mean of its divisors is an integer number (549030636).

Almost surely, 2^2013112321 is an apocalyptic number.

It is an amenable number.

2013112321 is a deficient number, since it is larger than the sum of its proper divisors (183010223).

2013112321 is a wasteful number, since it uses less digits than its factorization.

2013112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183010222.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2013112321 is about 44867.7202563268. The cubic root of 2013112321 is about 1262.6684693132.

Adding to 2013112321 its reverse (1232113102), we get a palindrome (3245225423).

The spelling of 2013112321 in words is "two billion, thirteen million, one hundred twelve thousand, three hundred twenty-one".