210012134040042 has 32 divisors (see below), whose sum is σ = 421496964947520. Its totient is φ = 69758639610240.

The previous prime is 210012134040031. The next prime is 210012134040077. The reversal of 210012134040042 is 240040431210012.

It is a junction number, because it is equal to n+sod(n) for n = 210012134039994 and 210012134040021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13389934 + ... + 24480902.

It is an arithmetic number, because the mean of its divisors is an integer number (13171780154610).

Almost surely, 2^{210012134040042} is an apocalyptic number.

210012134040042 is an abundant number, since it is smaller than the sum of its proper divisors (211484830907478).

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

210012134040042 is a wasteful number, since it uses less digits than its factorization.

210012134040042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102038.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 210012134040042 its reverse (240040431210012), we get a palindrome (450052565250054).

The spelling of 210012134040042 in words is "two hundred ten trillion, twelve billion, one hundred thirty-four million, forty thousand, forty-two".