33042042403 has 4 divisors (see below), whose sum is σ = 33602077080. Its totient is φ = 32482007728.

The previous prime is 33042042391. The next prime is 33042042421. The reversal of 33042042403 is 30424024033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33042042403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33042042463) 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 3 ways as a sum of consecutive naturals, for example, 280017250 + ... + 280017367.

It is an arithmetic number, because the mean of its divisors is an integer number (8400519270).

Almost surely, 2^33042042403 is an apocalyptic number.

33042042403 is a deficient number, since it is larger than the sum of its proper divisors (560034677).

33042042403 is an equidigital number, since it uses as much as digits as its factorization.

33042042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560034676.

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 33042042403 its reverse (30424024033), we get a palindrome (63466066436).

The spelling of 33042042403 in words is "thirty-three billion, forty-two million, forty-two thousand, four hundred three".