1200020102 has 8 divisors (see below), whose sum is σ = 1800244200. Its totient is φ = 599938704.

The previous prime is 1200020093. The next prime is 1200020141. The reversal of 1200020102 is 2010200021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1200020102.

It is a congruent number.

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, 11327 + ... + 50282.

It is an arithmetic number, because the mean of its divisors is an integer number (225030525).

Almost surely, 2^1200020102 is an apocalyptic number.

1200020102 is a deficient number, since it is larger than the sum of its proper divisors (600224098).

1200020102 is an equidigital number, since it uses as much as digits as its factorization.

1200020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71350.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1200020102 is about 34641.3062975402. The cubic root of 1200020102 is about 1062.6645029169.

Adding to 1200020102 its reverse (2010200021), we get a palindrome (3210220123).

The spelling of 1200020102 in words is "one billion, two hundred million, twenty thousand, one hundred two".