42311320443 has 12 divisors (see below), whose sum is σ = 69847259248. Its totient is φ = 24177897360.

The previous prime is 42311320409. The next prime is 42311320477. The reversal of 42311320443 is 34402311324.

It is an interprime number because it is at equal distance from previous prime (42311320409) and next prime (42311320477).

It is not a de Polignac number, because 42311320443 - 2¹⁰ = 42311319419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42311320483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335804068 + ... + 335804193.

Almost surely, 2^42311320443 is an apocalyptic number.

42311320443 is a deficient number, since it is larger than the sum of its proper divisors (27535938805).

42311320443 is a wasteful number, since it uses less digits than its factorization.

42311320443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671608274 (or 671608271 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 42311320443 its reverse (34402311324), we get a palindrome (76713631767).

It can be divided in two parts, 423113 and 20443, that added together give a square (443556 = 666²).

The spelling of 42311320443 in words is "forty-two billion, three hundred eleven million, three hundred twenty thousand, four hundred forty-three".