1321030002 has 32 divisors (see below), whose sum is σ = 2695335552. Its totient is φ = 431553024.

The previous prime is 1321029971. The next prime is 1321030027. The reversal of 1321030002 is 2000301231.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321030002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48928 + ... + 70964.

It is an arithmetic number, because the mean of its divisors is an integer number (84229236).

Almost surely, 2^1321030002 is an apocalyptic number.

1321030002 is an abundant number, since it is smaller than the sum of its proper divisors (1374305550).

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

1321030002 is a wasteful number, since it uses less digits than its factorization.

1321030002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22242.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1321030002 is about 36345.9764210566. The cubic root of 1321030002 is about 1097.2465576051.

Adding to 1321030002 its reverse (2000301231), we get a palindrome (3321331233).

The spelling of 1321030002 in words is "one billion, three hundred twenty-one million, thirty thousand, two".