20200201002 has 12 divisors (see below), whose sum is σ = 43767102210. Its totient is φ = 6733400328.

The previous prime is 20200200973. The next prime is 20200201009. The reversal of 20200201002 is 20010200202.

It can be written as a sum of positive squares in only one way, i.e., 12543776001 + 7656425001 = 111999^2 + 87501^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20200201009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561116677 + ... + 561116712.

Almost surely, 2^20200201002 is an apocalyptic number.

20200201002 is an abundant number, since it is smaller than the sum of its proper divisors (23566901208).

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

20200201002 is a wasteful number, since it uses less digits than its factorization.

20200201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122233397 (or 1122233394 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20200201002 its reverse (20010200202), we get a palindrome (40210401204).

The spelling of 20200201002 in words is "twenty billion, two hundred million, two hundred one thousand, two".