42403210403 has 4 divisors (see below), whose sum is σ = 42840357000. Its totient is φ = 41966063808.

The previous prime is 42403210393. The next prime is 42403210433. The reversal of 42403210403 is 30401230424.

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 42403210403 - 2⁴ = 42403210387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42403210433) 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, 218573153 + ... + 218573346.

It is an arithmetic number, because the mean of its divisors is an integer number (10710089250).

Almost surely, 2^42403210403 is an apocalyptic number.

42403210403 is a deficient number, since it is larger than the sum of its proper divisors (437146597).

42403210403 is an equidigital number, since it uses as much as digits as its factorization.

42403210403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437146596.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42403210403 its reverse (30401230424), we get a palindrome (72804440827).

The spelling of 42403210403 in words is "forty-two billion, four hundred three million, two hundred ten thousand, four hundred three".