20003321011 has 8 divisors (see below), whose sum is σ = 21058002000. Its totient is φ = 18948827520.

The previous prime is 20003320949. The next prime is 20003321047. The reversal of 20003321011 is 11012330002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20003321011 - 2⁹ = 20003320499 is a prime.

It is a super-2 number, since 2×20003321011² (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 = 20003320982 and 20003321000.

It is not an unprimeable number, because it can be changed into a prime (20003321071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207591 + ... + 288271.

It is an arithmetic number, because the mean of its divisors is an integer number (2632250250).

Almost surely, 2^20003321011 is an apocalyptic number.

20003321011 is a deficient number, since it is larger than the sum of its proper divisors (1054680989).

20003321011 is a wasteful number, since it uses less digits than its factorization.

20003321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93749.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20003321011 its reverse (11012330002), we get a palindrome (31015651013).

The spelling of 20003321011 in words is "twenty billion, three million, three hundred twenty-one thousand, eleven".