210442121342 has 8 divisors (see below), whose sum is σ = 315929119176. Its totient is φ = 105132414952.

The previous prime is 210442121251. The next prime is 210442121353. The reversal of 210442121342 is 243121244012.

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

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, 44319893 + ... + 44324640.

It is an arithmetic number, because the mean of its divisors is an integer number (39491139897).

Almost surely, 2^210442121342 is an apocalyptic number.

210442121342 is a deficient number, since it is larger than the sum of its proper divisors (105486997834).

210442121342 is a wasteful number, since it uses less digits than its factorization.

210442121342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88645722.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 210442121342 its reverse (243121244012), we get a palindrome (453563365354).

The spelling of 210442121342 in words is "two hundred ten billion, four hundred forty-two million, one hundred twenty-one thousand, three hundred forty-two".