42142223443 has 2 divisors, whose sum is σ = 42142223444. Its totient is φ = 42142223442.

The previous prime is 42142223419. The next prime is 42142223447. The reversal of 42142223443 is 34432224124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42142223443 - 2⁹ = 42142222931 is a prime.

It is not a weakly prime, because it can be changed into another prime (42142223447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071111721 + 21071111722.

It is an arithmetic number, because the mean of its divisors is an integer number (21071111722).

Almost surely, 2^42142223443 is an apocalyptic number.

42142223443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142223443 is an equidigital number, since it uses as much as digits as its factorization.

42142223443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 31.

Adding to 42142223443 its reverse (34432224124), we get a palindrome (76574447567).

The spelling of 42142223443 in words is "forty-two billion, one hundred forty-two million, two hundred twenty-three thousand, four hundred forty-three".