33020012011 has 16 divisors (see below), whose sum is σ = 39729429760. Its totient is φ = 26809120800.

The previous prime is 33020011993. The next prime is 33020012017. The reversal of 33020012011 is 11021002033.

It is not a de Polignac number, because 33020012011 - 2⁵ = 33020011979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33020011982 and 33020012000.

It is not an unprimeable number, because it can be changed into a prime (33020012017) 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 15 ways as a sum of consecutive naturals, for example, 1091236 + ... + 1121086.

It is an arithmetic number, because the mean of its divisors is an integer number (2483089360).

Almost surely, 2^33020012011 is an apocalyptic number.

33020012011 is a deficient number, since it is larger than the sum of its proper divisors (6709417749).

33020012011 is a wasteful number, since it uses less digits than its factorization.

33020012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38194.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 33020012011 its reverse (11021002033), we get a palindrome (44041014044).

The spelling of 33020012011 in words is "thirty-three billion, twenty million, twelve thousand, eleven".