2130100002 has 24 divisors (see below), whose sum is σ = 4625513100. Its totient is φ = 708449280.

The previous prime is 2130100001. The next prime is 2130100031. The reversal of 2130100002 is 2000010312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2118668841 + 11431161 = 46029^2 + 3381^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2130100001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123699 + ... + 139862.

Almost surely, 2^2130100002 is an apocalyptic number.

2130100002 is an abundant number, since it is smaller than the sum of its proper divisors (2495413098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130100002 is a wasteful number, since it uses less digits than its factorization.

2130100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264018 (or 264015 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2130100002 is about 46153.0064242840. The cubic root of 2130100002 is about 1286.6684866533.

Adding to 2130100002 its reverse (2000010312), we get a palindrome (4130110314).

The spelling of 2130100002 in words is "two billion, one hundred thirty million, one hundred thousand, two".