210042342012 has 24 divisors (see below), whose sum is σ = 490186958800. Its totient is φ = 70001519616.

The previous prime is 210042341923. The next prime is 210042342019. The reversal of 210042342012 is 210243240012.

It is a self number, because there is not a number n which added to its sum of digits gives 210042342012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210042342019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1504687 + ... + 1638342.

Almost surely, 2^210042342012 is an apocalyptic number.

It is an amenable number.

210042342012 is an abundant number, since it is smaller than the sum of its proper divisors (280144616788).

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

210042342012 is a wasteful number, since it uses less digits than its factorization.

210042342012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148605 (or 3148603 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 210042342012 its reverse (210243240012), we get a palindrome (420285582024).

The spelling of 210042342012 in words is "two hundred ten billion, forty-two million, three hundred forty-two thousand, twelve".