20201002000 has 40 divisors (see below), whose sum is σ = 48846027672. Its totient is φ = 8080400000.

The previous prime is 20201001983. The next prime is 20201002013. The reversal of 20201002000 is 20010202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 633616 + 20200368384 = 796^2 + 142128^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5048251 + ... + 5052250.

Almost surely, 2^20201002000 is an apocalyptic number.

20201002000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201002000 is an abundant number, since it is smaller than the sum of its proper divisors (28645025672).

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

20201002000 is a wasteful number, since it uses less digits than its factorization.

20201002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100524 (or 10100508 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 20201002000 its reverse (20010202), we get a palindrome (20221012202).

The spelling of 20201002000 in words is "twenty billion, two hundred one million, two thousand".