142102011121242 has 32 divisors (see below), whose sum is σ = 288864127048320. Its totient is φ = 46590658403520.

The previous prime is 142102011121229. The next prime is 142102011121247. The reversal of 142102011121242 is 242121110201241.

142102011121242 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (142102011121247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144985243 + ... + 145962065.

It is an arithmetic number, because the mean of its divisors is an integer number (9027003970260).

Almost surely, 2^{142102011121242} is an apocalyptic number.

142102011121242 is an abundant number, since it is smaller than the sum of its proper divisors (146762115927078).

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

142102011121242 is a wasteful number, since it uses less digits than its factorization.

142102011121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374358.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 142102011121242 its reverse (242121110201241), we get a palindrome (384223121322483).

The spelling of 142102011121242 in words is "one hundred forty-two trillion, one hundred two billion, eleven million, one hundred twenty-one thousand, two hundred forty-two".