42403440311 has 4 divisors (see below), whose sum is σ = 42940192800. Its totient is φ = 41866687824.

The previous prime is 42403440271. The next prime is 42403440319. The reversal of 42403440311 is 11304430424.

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 42403440311 - 2²² = 42399246007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42403440319) 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, 268376126 + ... + 268376283.

It is an arithmetic number, because the mean of its divisors is an integer number (10735048200).

Almost surely, 2^42403440311 is an apocalyptic number.

42403440311 is a deficient number, since it is larger than the sum of its proper divisors (536752489).

42403440311 is an equidigital number, since it uses as much as digits as its factorization.

42403440311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536752488.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 42403440311 its reverse (11304430424), we get a palindrome (53707870735).

The spelling of 42403440311 in words is "forty-two billion, four hundred three million, four hundred forty thousand, three hundred eleven".