1200000002 has 4 divisors (see below), whose sum is σ = 1800000006. Its totient is φ = 600000000.

The previous prime is 1199999993. The next prime is 1200000041. The reversal of 1200000002 is 2000000021.

1200000002 = 19999² + 20000² + 20001².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1197782881 + 2217121 = 34609^2 + 1489^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299999999 + ... + 300000002.

Almost surely, 2^1200000002 is an apocalyptic number.

1200000002 is a deficient number, since it is larger than the sum of its proper divisors (600000004).

1200000002 is an equidigital number, since it uses as much as digits as its factorization.

1200000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600000003.

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

The square root of 1200000002 is about 34641.0161802451. The cubic root of 1200000002 is about 1062.6585697730.

Adding to 1200000002 its reverse (2000000021), we get a palindrome (3200000023).

The spelling of 1200000002 in words is "one billion, two hundred million, two", and thus it is an aban number.