2168113213 has 8 divisors (see below), whose sum is σ = 2511787328. Its totient is φ = 1832925024.

The previous prime is 2168113201. The next prime is 2168113267. The reversal of 2168113213 is 3123118612.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2168113213 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 (2168110213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120931 + ... + 2121952.

It is an arithmetic number, because the mean of its divisors is an integer number (313973416).

Almost surely, 2^2168113213 is an apocalyptic number.

It is an amenable number.

2168113213 is a deficient number, since it is larger than the sum of its proper divisors (343674115).

2168113213 is an equidigital number, since it uses as much as digits as its factorization.

2168113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242963.

The product of its digits is 1728, while the sum is 28.

The square root of 2168113213 is about 46563.0026201060. The cubic root of 2168113213 is about 1294.2772536685.

The spelling of 2168113213 in words is "two billion, one hundred sixty-eight million, one hundred thirteen thousand, two hundred thirteen".