210443130045242 has 4 divisors (see below), whose sum is σ = 315664695067866. Its totient is φ = 105221565022620.

The previous prime is 210443130045241. The next prime is 210443130045263. The reversal of 210443130045242 is 242540031344012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 155167905002881 + 55275225042361 = 12456641^2 + 7434731^2 .

It is not an unprimeable number, because it can be changed into a prime (210443130045241) by changing a digit.

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 as a sum of consecutive naturals, namely, 52610782511309 + ... + 52610782511312.

Almost surely, 2^{210443130045242} is an apocalyptic number.

210443130045242 is a deficient number, since it is larger than the sum of its proper divisors (105221565022624).

210443130045242 is a wasteful number, since it uses less digits than its factorization.

210443130045242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105221565022623.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 210443130045242 its reverse (242540031344012), we get a palindrome (452983161389254).

The spelling of 210443130045242 in words is "two hundred ten trillion, four hundred forty-three billion, one hundred thirty million, forty-five thousand, two hundred forty-two".