42530321354441 has 4 divisors (see below), whose sum is σ = 42623385515412. Its totient is φ = 42437257193472.

The previous prime is 42530321354431. The next prime is 42530321354449. The reversal of 42530321354441 is 14445312303524.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31461957937216 + 11068363417225 = 5609096^2 + 3326915^2 .

It is a cyclic number.

It is not a de Polignac number, because 42530321354441 - 2³⁴ = 42513141485257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42530321354449) 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, 46532079800 + ... + 46532080713.

It is an arithmetic number, because the mean of its divisors is an integer number (10655846378853).

Almost surely, 2^{42530321354441} is an apocalyptic number.

It is an amenable number.

42530321354441 is a deficient number, since it is larger than the sum of its proper divisors (93064160971).

42530321354441 is an equidigital number, since it uses as much as digits as its factorization.

42530321354441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93064160970.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 42530321354441 its reverse (14445312303524), we get a palindrome (56975633657965).

The spelling of 42530321354441 in words is "forty-two trillion, five hundred thirty billion, three hundred twenty-one million, three hundred fifty-four thousand, four hundred forty-one".