210242242013 has 4 divisors (see below), whose sum is σ = 210245135868. Its totient is φ = 210239348160.

The previous prime is 210242241967. The next prime is 210242242031. The reversal of 210242242013 is 310242242012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 147915621604 + 62326620409 = 384598^2 + 249653^2 .

It is a cyclic number.

It is not a de Polignac number, because 210242242013 - 2²⁴ = 210225464797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210242242013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210242242033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335068 + ... + 1484213.

It is an arithmetic number, because the mean of its divisors is an integer number (52561283967).

Almost surely, 2^210242242013 is an apocalyptic number.

It is an amenable number.

210242242013 is a deficient number, since it is larger than the sum of its proper divisors (2893855).

210242242013 is an equidigital number, since it uses as much as digits as its factorization.

210242242013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893854.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 210242242013 its reverse (310242242012), we get a palindrome (520484484025).

Subtracting 210242242013 from its reverse (310242242012), we obtain a palindrome (99999999999).

The spelling of 210242242013 in words is "two hundred ten billion, two hundred forty-two million, two hundred forty-two thousand, thirteen".