242434021013 has 2 divisors, whose sum is σ = 242434021014. Its totient is φ = 242434021012.

The previous prime is 242434021009. The next prime is 242434021057. The reversal of 242434021013 is 310120434242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194885165764 + 47548855249 = 441458^2 + 218057^2 .

It is a cyclic number.

It is not a de Polignac number, because 242434021013 - 2² = 242434021009 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242434021813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121217010506 + 121217010507.

It is an arithmetic number, because the mean of its divisors is an integer number (121217010507).

Almost surely, 2^242434021013 is an apocalyptic number.

It is an amenable number.

242434021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

242434021013 is an equidigital number, since it uses as much as digits as its factorization.

242434021013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 242434021013 its reverse (310120434242), we get a palindrome (552554455255).

The spelling of 242434021013 in words is "two hundred forty-two billion, four hundred thirty-four million, twenty-one thousand, thirteen".