2106321130 has 16 divisors (see below), whose sum is σ = 3824932104. Its totient is φ = 835072000.

The previous prime is 2106321109. The next prime is 2106321179. The reversal of 2106321130 is 311236012.

It can be written as a sum of positive squares in 4 ways, for example, as 613503361 + 1492817769 = 24769^2 + 38637^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2106321098 and 2106321107.

It is an unprimeable number.

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, 930871 + ... + 933130.

Almost surely, 2^2106321130 is an apocalyptic number.

2106321130 is a deficient number, since it is larger than the sum of its proper divisors (1718610974).

2106321130 is a wasteful number, since it uses less digits than its factorization.

2106321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864121.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2106321130 is about 45894.6743097715. The cubic root of 2106321130 is about 1281.8627521423.

Adding to 2106321130 its reverse (311236012), we get a palindrome (2417557142).

The spelling of 2106321130 in words is "two billion, one hundred six million, three hundred twenty-one thousand, one hundred thirty".