21032032133 has 16 divisors (see below), whose sum is σ = 24092576640. Its totient is φ = 17985537216.

The previous prime is 21032032093. The next prime is 21032032187. The reversal of 21032032133 is 33123023012.

It is a cyclic number.

It is not a de Polignac number, because 21032032133 - 2¹⁰ = 21032031109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032032033) 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, 8802503 + ... + 8804891.

It is an arithmetic number, because the mean of its divisors is an integer number (1505786040).

Almost surely, 2^21032032133 is an apocalyptic number.

It is an amenable number.

21032032133 is a deficient number, since it is larger than the sum of its proper divisors (3060544507).

21032032133 is a wasteful number, since it uses less digits than its factorization.

21032032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21032032133 its reverse (33123023012), we get a palindrome (54155055145).

The spelling of 21032032133 in words is "twenty-one billion, thirty-two million, thirty-two thousand, one hundred thirty-three".