21133000705 has 8 divisors (see below), whose sum is σ = 26694316800. Its totient is φ = 16016589936.

The previous prime is 21133000703. The next prime is 21133000751. The reversal of 21133000705 is 50700033112.

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

It is a cyclic number.

It is not a de Polignac number, because 21133000705 - 2¹ = 21133000703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21133000703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111226225 + ... + 111226414.

It is an arithmetic number, because the mean of its divisors is an integer number (3336789600).

It is a Proth number, since it is equal to 10077 ⋅ 2²¹ + 1 and 10077 < 2²¹.

Almost surely, 2^21133000705 is an apocalyptic number.

It is an amenable number.

21133000705 is a deficient number, since it is larger than the sum of its proper divisors (5561316095).

21133000705 is a wasteful number, since it uses less digits than its factorization.

21133000705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222452663.

The product of its (nonzero) digits is 630, while the sum is 22.

Adding to 21133000705 its reverse (50700033112), we get a palindrome (71833033817).

The spelling of 21133000705 in words is "twenty-one billion, one hundred thirty-three million, seven hundred five", and thus it is an aban number.