42134344221043 has 2 divisors, whose sum is σ = 42134344221044. Its totient is φ = 42134344221042.

The previous prime is 42134344221031. The next prime is 42134344221133. The reversal of 42134344221043 is 34012244343124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42134344221043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42134344220993 and 42134344221011.

It is not a weakly prime, because it can be changed into another prime (42137344221043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21067172110521 + 21067172110522.

It is an arithmetic number, because the mean of its divisors is an integer number (21067172110522).

Almost surely, 2^{42134344221043} is an apocalyptic number.

42134344221043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42134344221043 is an equidigital number, since it uses as much as digits as its factorization.

42134344221043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 42134344221043 its reverse (34012244343124), we get a palindrome (76146588564167).

The spelling of 42134344221043 in words is "forty-two trillion, one hundred thirty-four billion, three hundred forty-four million, two hundred twenty-one thousand, forty-three".