12111421141423 has 32 divisors (see below), whose sum is σ = 12371631552000. Its totient is φ = 11854898187264.

The previous prime is 12111421141409. The next prime is 12111421141433. The reversal of 12111421141423 is 32414112411121.

It is a cyclic number.

It is not a de Polignac number, because 12111421141423 - 2²¹ = 12111419044271 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12111421141391 and 12111421141400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111421141433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2991210903 + ... + 2991214951.

It is an arithmetic number, because the mean of its divisors is an integer number (386613486000).

Almost surely, 2^{12111421141423} is an apocalyptic number.

12111421141423 is a deficient number, since it is larger than the sum of its proper divisors (260210410577).

12111421141423 is a wasteful number, since it uses less digits than its factorization.

12111421141423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199.

The product of its digits is 1536, while the sum is 28.

Adding to 12111421141423 its reverse (32414112411121), we get a palindrome (44525533552544).

The spelling of 12111421141423 in words is "twelve trillion, one hundred eleven billion, four hundred twenty-one million, one hundred forty-one thousand, four hundred twenty-three".