20020310011 has 4 divisors (see below), whose sum is σ = 21560333872. Its totient is φ = 18480286152.

The previous prime is 20020309961. The next prime is 20020310017. The reversal of 20020310011 is 11001302002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20020310011 - 2²⁹ = 19483439099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020310011.

It is not an unprimeable number, because it can be changed into a prime (20020310017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770011911 + ... + 770011936.

It is an arithmetic number, because the mean of its divisors is an integer number (5390083468).

Almost surely, 2^20020310011 is an apocalyptic number.

20020310011 is a deficient number, since it is larger than the sum of its proper divisors (1540023861).

20020310011 is a wasteful number, since it uses less digits than its factorization.

20020310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540023860.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20020310011 its reverse (11001302002), we get a palindrome (31021612013).

The spelling of 20020310011 in words is "twenty billion, twenty million, three hundred ten thousand, eleven".