42242114021381 has 2 divisors, whose sum is σ = 42242114021382. Its totient is φ = 42242114021380.

The previous prime is 42242114021207. The next prime is 42242114021389. The reversal of 42242114021381 is 18312041124224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25169235441025 + 17072878580356 = 5016895^2 + 4131934^2 .

It is a cyclic number.

It is not a de Polignac number, because 42242114021381 - 2²² = 42242109827077 is a prime.

It is a super-2 number, since 2×42242114021381² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42242114021389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121057010690 + 21121057010691.

It is an arithmetic number, because the mean of its divisors is an integer number (21121057010691).

Almost surely, 2^{42242114021381} is an apocalyptic number.

It is an amenable number.

42242114021381 is a deficient number, since it is larger than the sum of its proper divisors (1).

42242114021381 is an equidigital number, since it uses as much as digits as its factorization.

42242114021381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 35.

The spelling of 42242114021381 in words is "forty-two trillion, two hundred forty-two billion, one hundred fourteen million, twenty-one thousand, three hundred eighty-one".