20202011001 has 24 divisors (see below), whose sum is σ = 30231377280. Its totient is φ = 12984439776.

The previous prime is 20202010991. The next prime is 20202011069. The reversal of 20202011001 is 10011020202.

It is not a de Polignac number, because 20202011001 - 2⁶ = 20202010937 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20202012001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121600 + ... + 234926.

It is an arithmetic number, because the mean of its divisors is an integer number (1259640720).

Almost surely, 2^20202011001 is an apocalyptic number.

It is an amenable number.

20202011001 is a deficient number, since it is larger than the sum of its proper divisors (10029366279).

20202011001 is a wasteful number, since it uses less digits than its factorization.

20202011001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114045 (or 114042 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20202011001 its reverse (10011020202), we get a palindrome (30213031203).

It can be divided in two parts, 2020201 and 1001, that added together give a palindrome (2021202).

The spelling of 20202011001 in words is "twenty billion, two hundred two million, eleven thousand, one".