23221303133 has 4 divisors (see below), whose sum is σ = 26538632160. Its totient is φ = 19903974108.

The previous prime is 23221303123. The next prime is 23221303151. The reversal of 23221303133 is 33130312232.

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 23221303133 - 2⁴ = 23221303117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23221303099 and 23221303108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221303103) 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, 1658664503 + ... + 1658664516.

It is an arithmetic number, because the mean of its divisors is an integer number (6634658040).

Almost surely, 2^23221303133 is an apocalyptic number.

It is an amenable number.

23221303133 is a deficient number, since it is larger than the sum of its proper divisors (3317329027).

23221303133 is an equidigital number, since it uses as much as digits as its factorization.

23221303133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317329026.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23221303133 its reverse (33130312232), we get a palindrome (56351615365).

Subtracting 23221303133 from its reverse (33130312232), we obtain a palindrome (9909009099).

The spelling of 23221303133 in words is "twenty-three billion, two hundred twenty-one million, three hundred three thousand, one hundred thirty-three".