33123313042 has 4 divisors (see below), whose sum is σ = 49684969566. Its totient is φ = 16561656520.

The previous prime is 33123313031. The next prime is 33123313087. The reversal of 33123313042 is 24031332133.

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

It can be written as a sum of positive squares in only one way, i.e., 25898143041 + 7225170001 = 160929^2 + 85001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33123312998 and 33123313016.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8280828259 + ... + 8280828262.

Almost surely, 2^33123313042 is an apocalyptic number.

33123313042 is a deficient number, since it is larger than the sum of its proper divisors (16561656524).

33123313042 is a wasteful number, since it uses less digits than its factorization.

33123313042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16561656523.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 33123313042 its reverse (24031332133), we get a palindrome (57154645175).

The spelling of 33123313042 in words is "thirty-three billion, one hundred twenty-three million, three hundred thirteen thousand, forty-two".