33031421042 has 8 divisors (see below), whose sum is σ = 49568303532. Its totient is φ = 16508653200.

The previous prime is 33031421023. The next prime is 33031421117. The reversal of 33031421042 is 24012413033.

It can be written as a sum of positive squares in 2 ways, for example, as 33007985761 + 23435281 = 181681^2 + 4841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 33031420999 and 33031421017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522809 + ... + 3532172.

Almost surely, 2^33031421042 is an apocalyptic number.

33031421042 is a deficient number, since it is larger than the sum of its proper divisors (16536882490).

33031421042 is a wasteful number, since it uses less digits than its factorization.

33031421042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057324.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 33031421042 its reverse (24012413033), we get a palindrome (57043834075).

The spelling of 33031421042 in words is "thirty-three billion, thirty-one million, four hundred twenty-one thousand, forty-two".