211020103103 has 16 divisors (see below), whose sum is σ = 219878668800. Its totient is φ = 202339811520.

The previous prime is 211020103067. The next prime is 211020103153. The reversal of 211020103103 is 301301020112.

It is a cyclic number.

It is not a de Polignac number, because 211020103103 - 2¹⁰ = 211020102079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020103153) 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, 18763400 + ... + 18774642.

It is an arithmetic number, because the mean of its divisors is an integer number (13742416800).

Almost surely, 2^211020103103 is an apocalyptic number.

211020103103 is a deficient number, since it is larger than the sum of its proper divisors (8858565697).

211020103103 is a wasteful number, since it uses less digits than its factorization.

211020103103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19102.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 211020103103 its reverse (301301020112), we get a palindrome (512321123215).

The spelling of 211020103103 in words is "two hundred eleven billion, twenty million, one hundred three thousand, one hundred three".