12111404313420 has 72 divisors (see below), whose sum is σ = 36739516479120. Its totient is φ = 3229568031360.

The previous prime is 12111404313341. The next prime is 12111404313427. The reversal of 12111404313420 is 2431340411121.

It is a happy number.

12111404313420 is a `hidden beast` number, since 1 + 211 + 1 + 404 + 3 + 1 + 3 + 42 + 0 = 666.

It is a super-2 number, since 2×12111404313420² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12111404313427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2747926 + ... + 5636834.

It is an arithmetic number, because the mean of its divisors is an integer number (510271062210).

Almost surely, 2^{12111404313420} is an apocalyptic number.

12111404313420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111404313420 is an abundant number, since it is smaller than the sum of its proper divisors (24628112165700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12111404313420 is a wasteful number, since it uses less digits than its factorization.

12111404313420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912215 (or 2912210 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 12111404313420 its reverse (2431340411121), we get a palindrome (14542744724541).

The spelling of 12111404313420 in words is "twelve trillion, one hundred eleven billion, four hundred four million, three hundred thirteen thousand, four hundred twenty".