2113212130 has 8 divisors (see below), whose sum is σ = 3803781852. Its totient is φ = 845284848.

The previous prime is 2113212113. The next prime is 2113212133. The reversal of 2113212130 is 312123112.

It can be written as a sum of positive squares in 2 ways, for example, as 1931690401 + 181521729 = 43951^2 + 13473^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2113212133) 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 3 ways as a sum of consecutive naturals, for example, 105660597 + ... + 105660616.

Almost surely, 2^2113212130 is an apocalyptic number.

2113212130 is a deficient number, since it is larger than the sum of its proper divisors (1690569722).

2113212130 is a wasteful number, since it uses less digits than its factorization.

2113212130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211321220.

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

The square root of 2113212130 is about 45969.6870774644. The cubic root of 2113212130 is about 1283.2591363561.

Adding to 2113212130 its reverse (312123112), we get a palindrome (2425335242).

The spelling of 2113212130 in words is "two billion, one hundred thirteen million, two hundred twelve thousand, one hundred thirty".