21733000361 has 4 divisors (see below), whose sum is σ = 22195404672. Its totient is φ = 21270596052.

The previous prime is 21733000351. The next prime is 21733000369. The reversal of 21733000361 is 16300033712.

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 a cyclic number.

It is not a de Polignac number, because 21733000361 - 2³⁰ = 20659258537 is a prime.

It is a super-2 number, since 2×21733000361² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21733000361.

It is not an unprimeable number, because it can be changed into a prime (21733000369) 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, 231202085 + ... + 231202178.

It is an arithmetic number, because the mean of its divisors is an integer number (5548851168).

Almost surely, 2^21733000361 is an apocalyptic number.

It is an amenable number.

21733000361 is a deficient number, since it is larger than the sum of its proper divisors (462404311).

21733000361 is an equidigital number, since it uses as much as digits as its factorization.

21733000361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462404310.

The product of its (nonzero) digits is 2268, while the sum is 26.

The spelling of 21733000361 in words is "twenty-one billion, seven hundred thirty-three million, three hundred sixty-one", and thus it is an aban number.