242423201134381 has 2 divisors, whose sum is σ = 242423201134382. Its totient is φ = 242423201134380.

The previous prime is 242423201134379. The next prime is 242423201134397. The reversal of 242423201134381 is 183431102324242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242407150524900 + 16050609481 = 15569430^2 + 126691^2 .

It is a cyclic number.

It is not a de Polignac number, because 242423201134381 - 2¹ = 242423201134379 is a prime.

It is a super-2 number, since 2×242423201134381² (a number of 30 digits) contains 22 as substring.

Together with 242423201134379, 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 (242423201134351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121211600567190 + 121211600567191.

It is an arithmetic number, because the mean of its divisors is an integer number (121211600567191).

Almost surely, 2^{242423201134381} is an apocalyptic number.

It is an amenable number.

242423201134381 is a deficient number, since it is larger than the sum of its proper divisors (1).

242423201134381 is an equidigital number, since it uses as much as digits as its factorization.

242423201134381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 242423201134381 in words is "two hundred forty-two trillion, four hundred twenty-three billion, two hundred one million, one hundred thirty-four thousand, three hundred eighty-one".