42440432311 has 8 divisors (see below), whose sum is σ = 42821587440. Its totient is φ = 42059375232.

The previous prime is 42440432303. The next prime is 42440432341. The reversal of 42440432311 is 11323404424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42440432311 - 2³ = 42440432303 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 42440432311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440432341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058221 + ... + 1097593.

It is an arithmetic number, because the mean of its divisors is an integer number (5352698430).

Almost surely, 2^42440432311 is an apocalyptic number.

42440432311 is a deficient number, since it is larger than the sum of its proper divisors (381155129).

42440432311 is a wasteful number, since it uses less digits than its factorization.

42440432311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49025.

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

Adding to 42440432311 its reverse (11323404424), we get a palindrome (53763836735).

The spelling of 42440432311 in words is "forty-two billion, four hundred forty million, four hundred thirty-two thousand, three hundred eleven".