20120044033 has 4 divisors (see below), whose sum is σ = 20120341680. Its totient is φ = 20119746388.

The previous prime is 20120044003. The next prime is 20120044037. The reversal of 20120044033 is 33044002102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20120044033 - 2²⁵ = 20086489601 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120044033.

It is not an unprimeable number, because it can be changed into a prime (20120044037) 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, 6858 + ... + 200716.

It is an arithmetic number, because the mean of its divisors is an integer number (5030085420).

Almost surely, 2^20120044033 is an apocalyptic number.

It is an amenable number.

20120044033 is a deficient number, since it is larger than the sum of its proper divisors (297647).

20120044033 is a wasteful number, since it uses less digits than its factorization.

20120044033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297646.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20120044033 its reverse (33044002102), we get a palindrome (53164046135).

The spelling of 20120044033 in words is "twenty billion, one hundred twenty million, forty-four thousand, thirty-three".