142113212242 has 8 divisors (see below), whose sum is σ = 215125505100. Its totient is φ = 70404710544.

The previous prime is 142113212209. The next prime is 142113212243. The reversal of 142113212242 is 242212311241.

It can be written as a sum of positive squares in 2 ways, for example, as 133415598121 + 8697614121 = 365261^2 + 93261^2 .

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

It is not an unprimeable number, because it can be changed into a prime (142113212243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325947517 + ... + 325947952.

Almost surely, 2^142113212242 is an apocalyptic number.

142113212242 is a deficient number, since it is larger than the sum of its proper divisors (73012292858).

142113212242 is a wasteful number, since it uses less digits than its factorization.

142113212242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651895580.

The product of its digits is 1536, while the sum is 25.

Adding to 142113212242 its reverse (242212311241), we get a palindrome (384325523483).

The spelling of 142113212242 in words is "one hundred forty-two billion, one hundred thirteen million, two hundred twelve thousand, two hundred forty-two".