142243044212 has 12 divisors (see below), whose sum is σ = 249592690116. Its totient is φ = 70930847040.

The previous prime is 142243044173. The next prime is 142243044257. The reversal of 142243044212 is 212440342241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99821874916 + 42421169296 = 315946^2 + 205964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47667089 + ... + 47670072.

It is an arithmetic number, because the mean of its divisors is an integer number (20799390843).

Almost surely, 2^142243044212 is an apocalyptic number.

It is an amenable number.

142243044212 is a deficient number, since it is larger than the sum of its proper divisors (107349645904).

142243044212 is a wasteful number, since it uses less digits than its factorization.

142243044212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95337538 (or 95337536 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 142243044212 its reverse (212440342241), we get a palindrome (354683386453).

The spelling of 142243044212 in words is "one hundred forty-two billion, two hundred forty-three million, forty-four thousand, two hundred twelve".