42031003 has 4 divisors (see below), whose sum is σ = 48035440. Its totient is φ = 36026568.

The previous prime is 42030971. The next prime is 42031039. The reversal of 42031003 is 30013024.

42031003 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 42031003 - 2⁵ = 42030971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42031403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002208 + ... + 3002221.

It is an arithmetic number, because the mean of its divisors is an integer number (12008860).

Almost surely, 2^42031003 is an apocalyptic number.

42031003 is a deficient number, since it is larger than the sum of its proper divisors (6004437).

42031003 is an equidigital number, since it uses as much as digits as its factorization.

42031003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004436.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 42031003 is about 6483.1321905388. The cubic root of 42031003 is about 347.6881730190.

Adding to 42031003 its reverse (30013024), we get a palindrome (72044027).

The spelling of 42031003 in words is "forty-two million, thirty-one thousand, three".