12105420411 has 16 divisors (see below), whose sum is σ = 18447948288. Its totient is φ = 6916785600.

The previous prime is 12105420373. The next prime is 12105420419. The reversal of 12105420411 is 11402450121.

12105420411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12105420411 - 2¹⁰ = 12105419387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12105420419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368791 + ... + 400271.

It is an arithmetic number, because the mean of its divisors is an integer number (1152996768).

Almost surely, 2^12105420411 is an apocalyptic number.

12105420411 is a deficient number, since it is larger than the sum of its proper divisors (6342527877).

12105420411 is a wasteful number, since it uses less digits than its factorization.

12105420411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49802.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 12105420411 its reverse (11402450121), we get a palindrome (23507870532).

The spelling of 12105420411 in words is "twelve billion, one hundred five million, four hundred twenty thousand, four hundred eleven".