12142140444 has 72 divisors (see below), whose sum is σ = 35087689728. Its totient is φ = 3468155040.

The previous prime is 12142140431. The next prime is 12142140487. The reversal of 12142140444 is 44404124121.

It is a happy number.

12142140444 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 214 + 0 + 444 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1374289 + ... + 1383095.

It is an arithmetic number, because the mean of its divisors is an integer number (487329024).

Almost surely, 2^12142140444 is an apocalyptic number.

12142140444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12142140444 is an abundant number, since it is smaller than the sum of its proper divisors (22945549284).

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

12142140444 is a wasteful number, since it uses less digits than its factorization.

12142140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14295 (or 14290 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 12142140444 its reverse (44404124121), we get a palindrome (56546264565).

The spelling of 12142140444 in words is "twelve billion, one hundred forty-two million, one hundred forty thousand, four hundred forty-four".