20020302011 has 4 divisors (see below), whose sum is σ = 20020589712. Its totient is φ = 20020014312.

The previous prime is 20020301863. The next prime is 20020302013. The reversal of 20020302011 is 11020302002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20020302011 - 2¹⁴ = 20020285627 is a prime.

It is a super-2 number, since 2×20020302011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020301983 and 20020302001.

It is not an unprimeable number, because it can be changed into a prime (20020302013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33026 + ... + 202808.

It is an arithmetic number, because the mean of its divisors is an integer number (5005147428).

Almost surely, 2^20020302011 is an apocalyptic number.

20020302011 is a deficient number, since it is larger than the sum of its proper divisors (287701).

20020302011 is a wasteful number, since it uses less digits than its factorization.

20020302011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287700.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20020302011 its reverse (11020302002), we get a palindrome (31040604013).

Subtracting from 20020302011 its reverse (11020302002), we obtain a palindrome (9000000009).

The spelling of 20020302011 in words is "twenty billion, twenty million, three hundred two thousand, eleven".