300042442123453 has 2 divisors, whose sum is σ = 300042442123454. Its totient is φ = 300042442123452.

The previous prime is 300042442123451. The next prime is 300042442123511. The reversal of 300042442123453 is 354321244240003.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214857608952484 + 85184833170969 = 14658022^2 + 9229563^2 .

It is a cyclic number.

It is not a de Polignac number, because 300042442123453 - 2¹ = 300042442123451 is a prime.

Together with 300042442123451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300042442123451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150021221061726 + 150021221061727.

It is an arithmetic number, because the mean of its divisors is an integer number (150021221061727).

Almost surely, 2^{300042442123453} is an apocalyptic number.

It is an amenable number.

300042442123453 is a deficient number, since it is larger than the sum of its proper divisors (1).

300042442123453 is an equidigital number, since it uses as much as digits as its factorization.

300042442123453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 300042442123453 its reverse (354321244240003), we get a palindrome (654363686363456).

The spelling of 300042442123453 in words is "three hundred trillion, forty-two billion, four hundred forty-two million, one hundred twenty-three thousand, four hundred fifty-three".