2100000002 has 8 divisors (see below), whose sum is σ = 3156894156. Its totient is φ = 1047701952.

The previous prime is 2099999999. The next prime is 2100000011. The reversal of 2100000002 is 2000000012.

It can be written as a sum of positive squares in 2 ways, for example, as 1569665161 + 530334841 = 39619^2 + 23029^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147883 + ... + 1149710.

Almost surely, 2^2100000002 is an apocalyptic number.

2100000002 is a deficient number, since it is larger than the sum of its proper divisors (1056894154).

2100000002 is a wasteful number, since it uses less digits than its factorization.

2100000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298052.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 2100000002 is about 45825.7569713802. The cubic root of 2100000002 is about 1280.5791653940.

Adding to 2100000002 its reverse (2000000012), we get a palindrome (4100000014).

The spelling of 2100000002 in words is "two billion, one hundred million, two", and thus it is an aban number.