21700733133 has 4 divisors (see below), whose sum is σ = 28934310848. Its totient is φ = 14467155420.

The previous prime is 21700733107. The next prime is 21700733177. The reversal of 21700733133 is 33133700712.

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.

It is not a de Polignac number, because 21700733133 - 2⁶ = 21700733069 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 21700733133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21700733533) 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 3 ways as a sum of consecutive naturals, for example, 3616788853 + ... + 3616788858.

It is an arithmetic number, because the mean of its divisors is an integer number (7233577712).

Almost surely, 2^21700733133 is an apocalyptic number.

It is an amenable number.

21700733133 is a deficient number, since it is larger than the sum of its proper divisors (7233577715).

21700733133 is an equidigital number, since it uses as much as digits as its factorization.

21700733133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7233577714.

The product of its (nonzero) digits is 7938, while the sum is 30.

The spelling of 21700733133 in words is "twenty-one billion, seven hundred million, seven hundred thirty-three thousand, one hundred thirty-three".