12120103211 has 4 divisors (see below), whose sum is σ = 12758003400. Its totient is φ = 11482203024.

The previous prime is 12120103049. The next prime is 12120103217. The reversal of 12120103211 is 11230102121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12120103211 - 2¹⁴ = 12120086827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120103217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318950066 + ... + 318950103.

It is an arithmetic number, because the mean of its divisors is an integer number (3189500850).

Almost surely, 2^12120103211 is an apocalyptic number.

12120103211 is a deficient number, since it is larger than the sum of its proper divisors (637900189).

12120103211 is an equidigital number, since it uses as much as digits as its factorization.

12120103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637900188.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12120103211 its reverse (11230102121), we get a palindrome (23350205332).

The spelling of 12120103211 in words is "twelve billion, one hundred twenty million, one hundred three thousand, two hundred eleven".