42425221243243 has 4 divisors (see below), whose sum is σ = 43006388657608. Its totient is φ = 41844053828880.

The previous prime is 42425221243231. The next prime is 42425221243261. The reversal of 42425221243243 is 34234212252424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42425221243243 - 2¹³ = 42425221235051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42425221243196 and 42425221243205.

It is not an unprimeable number, because it can be changed into a prime (42425221243213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290583707073 + ... + 290583707218.

It is an arithmetic number, because the mean of its divisors is an integer number (10751597164402).

Almost surely, 2^{42425221243243} is an apocalyptic number.

42425221243243 is a deficient number, since it is larger than the sum of its proper divisors (581167414365).

42425221243243 is an equidigital number, since it uses as much as digits as its factorization.

42425221243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581167414364.

The product of its digits is 737280, while the sum is 40.

Adding to 42425221243243 its reverse (34234212252424), we get a palindrome (76659433495667).

The spelling of 42425221243243 in words is "forty-two trillion, four hundred twenty-five billion, two hundred twenty-one million, two hundred forty-three thousand, two hundred forty-three".