12112213043431 has 8 divisors (see below), whose sum is σ = 12586063351680. Its totient is φ = 11642108587872.

The previous prime is 12112213043423. The next prime is 12112213043473. The reversal of 12112213043431 is 13434031221121.

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

It is a cyclic number.

It is not a de Polignac number, because 12112213043431 - 2³ = 12112213043423 is a prime.

It is a super-2 number, since 2×12112213043431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112213043431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112213043401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936456580 + ... + 936469513.

It is an arithmetic number, because the mean of its divisors is an integer number (1573257918960).

Almost surely, 2^{12112213043431} is an apocalyptic number.

12112213043431 is a deficient number, since it is larger than the sum of its proper divisors (473850308249).

12112213043431 is a wasteful number, since it uses less digits than its factorization.

12112213043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872926345.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 12112213043431 its reverse (13434031221121), we get a palindrome (25546244264552).

The spelling of 12112213043431 in words is "twelve trillion, one hundred twelve billion, two hundred thirteen million, forty-three thousand, four hundred thirty-one".