42003302431 has 16 divisors (see below), whose sum is σ = 44538701760. Its totient is φ = 39541582080.

The previous prime is 42003302371. The next prime is 42003302477. The reversal of 42003302431 is 13420330024.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 42003302431 - 2⁷ = 42003302303 is a prime.

It is a super-2 number, since 2×42003302431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003332431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2110081 + ... + 2129893.

It is an arithmetic number, because the mean of its divisors is an integer number (2783668860).

Almost surely, 2^42003302431 is an apocalyptic number.

42003302431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42003302431 is a deficient number, since it is larger than the sum of its proper divisors (2535399329).

42003302431 is a wasteful number, since it uses less digits than its factorization.

42003302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21666.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 42003302431 its reverse (13420330024), we get a palindrome (55423632455).

The spelling of 42003302431 in words is "forty-two billion, three million, three hundred two thousand, four hundred thirty-one".