20331013211 has 8 divisors (see below), whose sum is σ = 20828762304. Its totient is φ = 19833353280.

The previous prime is 20331013207. The next prime is 20331013273. The reversal of 20331013211 is 11231013302.

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 20331013211 - 2² = 20331013207 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 20331013211.

It is not an unprimeable number, because it can be changed into a prime (20331013411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890606 + ... + 913148.

It is an arithmetic number, because the mean of its divisors is an integer number (2603595288).

Almost surely, 2^20331013211 is an apocalyptic number.

20331013211 is a deficient number, since it is larger than the sum of its proper divisors (497749093).

20331013211 is a wasteful number, since it uses less digits than its factorization.

20331013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44581.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20331013211 its reverse (11231013302), we get a palindrome (31562026513).

Subtracting from 20331013211 its reverse (11231013302), we obtain a palindrome (9099999909).

The spelling of 20331013211 in words is "twenty billion, three hundred thirty-one million, thirteen thousand, two hundred eleven".