12111314421 has 8 divisors (see below), whose sum is σ = 16220834560. Its totient is φ = 8038001952.

The previous prime is 12111314407. The next prime is 12111314459. The reversal of 12111314421 is 12441311121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12111314421 - 2¹⁴ = 12111298037 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 (12111314491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9051136 + ... + 9052473.

It is an arithmetic number, because the mean of its divisors is an integer number (2027604320).

Almost surely, 2^12111314421 is an apocalyptic number.

It is an amenable number.

12111314421 is a deficient number, since it is larger than the sum of its proper divisors (4109520139).

12111314421 is a wasteful number, since it uses less digits than its factorization.

12111314421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103835.

The product of its digits is 192, while the sum is 21.

Adding to 12111314421 its reverse (12441311121), we get a palindrome (24552625542).

The spelling of 12111314421 in words is "twelve billion, one hundred eleven million, three hundred fourteen thousand, four hundred twenty-one".