42440342311 has 4 divisors (see below), whose sum is σ = 42441044472. Its totient is φ = 42439640152.

The previous prime is 42440342303. The next prime is 42440342327. The reversal of 42440342311 is 11324304424.

42440342311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42440342311 - 2³ = 42440342303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42440342311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440342411) 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, 250885 + ... + 384478.

It is an arithmetic number, because the mean of its divisors is an integer number (10610261118).

Almost surely, 2^42440342311 is an apocalyptic number.

42440342311 is a deficient number, since it is larger than the sum of its proper divisors (702161).

42440342311 is an equidigital number, since it uses as much as digits as its factorization.

42440342311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702160.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42440342311 its reverse (11324304424), we get a palindrome (53764646735).

The spelling of 42440342311 in words is "forty-two billion, four hundred forty million, three hundred forty-two thousand, three hundred eleven".