42444431430043 has 4 divisors (see below), whose sum is σ = 42444458435160. Its totient is φ = 42444404424928.

The previous prime is 42444431430031. The next prime is 42444431430077. The reversal of 42444431430043 is 34003413444424.

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 42444431430043 - 2¹³ = 42444431421851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42444431429978 and 42444431430005.

It is not an unprimeable number, because it can be changed into a prime (42444431430343) 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, 10989013 + ... + 14340406.

It is an arithmetic number, because the mean of its divisors is an integer number (10611114608790).

Almost surely, 2^{42444431430043} is an apocalyptic number.

42444431430043 is a deficient number, since it is larger than the sum of its proper divisors (27005117).

42444431430043 is a wasteful number, since it uses less digits than its factorization.

42444431430043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27005116.

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 42444431430043 its reverse (34003413444424), we get a palindrome (76447844874467).

The spelling of 42444431430043 in words is "forty-two trillion, four hundred forty-four billion, four hundred thirty-one million, four hundred thirty thousand, forty-three".