20100311211 has 8 divisors (see below), whose sum is σ = 26935091200. Its totient is φ = 13332869352.

The previous prime is 20100311197. The next prime is 20100311227. The reversal of 20100311211 is 11211300102.

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

It is not a de Polignac number, because 20100311211 - 2²³ = 20091922603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100311251) 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, 16833835 + ... + 16835028.

It is an arithmetic number, because the mean of its divisors is an integer number (3366886400).

Almost surely, 2^20100311211 is an apocalyptic number.

20100311211 is a deficient number, since it is larger than the sum of its proper divisors (6834779989).

20100311211 is a wasteful number, since it uses less digits than its factorization.

20100311211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33669065.

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

Adding to 20100311211 its reverse (11211300102), we get a palindrome (31311611313).

The spelling of 20100311211 in words is "twenty billion, one hundred million, three hundred eleven thousand, two hundred eleven".