20103320211 has 16 divisors (see below), whose sum is σ = 28959141120. Its totient is φ = 12331487520.

The previous prime is 20103320207. The next prime is 20103320227. The reversal of 20103320211 is 11202330102.

It is not a de Polignac number, because 20103320211 - 2² = 20103320207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20103320201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816601 + ... + 840858.

It is an arithmetic number, because the mean of its divisors is an integer number (1809946320).

Almost surely, 2^20103320211 is an apocalyptic number.

20103320211 is a deficient number, since it is larger than the sum of its proper divisors (8855820909).

20103320211 is a wasteful number, since it uses less digits than its factorization.

20103320211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657786.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20103320211 its reverse (11202330102), we get a palindrome (31305650313).

The spelling of 20103320211 in words is "twenty billion, one hundred three million, three hundred twenty thousand, two hundred eleven".