2011212313 has 4 divisors (see below), whose sum is σ = 2194049808. Its totient is φ = 1828374820.

The previous prime is 2011212311. The next prime is 2011212349. The reversal of 2011212313 is 3132121102.

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 2011212313 - 2¹ = 2011212311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011212311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91418731 + ... + 91418752.

It is an arithmetic number, because the mean of its divisors is an integer number (548512452).

Almost surely, 2^2011212313 is an apocalyptic number.

It is an amenable number.

2011212313 is a deficient number, since it is larger than the sum of its proper divisors (182837495).

2011212313 is a wasteful number, since it uses less digits than its factorization.

2011212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182837494.

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

The square root of 2011212313 is about 44846.5418176251. The cubic root of 2011212313 is about 1262.2711019586.

Adding to 2011212313 its reverse (3132121102), we get a palindrome (5143333415).

The spelling of 2011212313 in words is "two billion, eleven million, two hundred twelve thousand, three hundred thirteen".