213142430442 has 16 divisors (see below), whose sum is σ = 451360441152. Its totient is φ = 66868213440.

The previous prime is 213142430381. The next prime is 213142430443. The reversal of 213142430442 is 244034241312.

It is not an unprimeable number, because it can be changed into a prime (213142430443) 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 7 ways as a sum of consecutive naturals, for example, 1044815734 + ... + 1044815937.

It is an arithmetic number, because the mean of its divisors is an integer number (28210027572).

Almost surely, 2^213142430442 is an apocalyptic number.

213142430442 is an abundant number, since it is smaller than the sum of its proper divisors (238218010710).

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

213142430442 is a wasteful number, since it uses less digits than its factorization.

213142430442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089631693.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 213142430442 its reverse (244034241312), we get a palindrome (457176671754).

The spelling of 213142430442 in words is "two hundred thirteen billion, one hundred forty-two million, four hundred thirty thousand, four hundred forty-two".