2021320002 has 32 divisors (see below), whose sum is σ = 4355568000. Its totient is φ = 621665280.

The previous prime is 2021319947. The next prime is 2021320033. The reversal of 2021320002 is 2000231202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021320002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229602 + ... + 238242.

It is an arithmetic number, because the mean of its divisors is an integer number (136111500).

Almost surely, 2^2021320002 is an apocalyptic number.

2021320002 is an abundant number, since it is smaller than the sum of its proper divisors (2334247998).

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

2021320002 is a wasteful number, since it uses less digits than its factorization.

2021320002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11658.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2021320002 is about 44959.0925397744. The cubic root of 2021320002 is about 1264.3821553350.

Adding to 2021320002 its reverse (2000231202), we get a palindrome (4021551204).

The spelling of 2021320002 in words is "two billion, twenty-one million, three hundred twenty thousand, two".