23221330313 has 4 divisors (see below), whose sum is σ = 23224157700. Its totient is φ = 23218502928.

The previous prime is 23221330309. The next prime is 23221330333. The reversal of 23221330313 is 31303312232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16778539024 + 6442791289 = 129532^2 + 80267^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221330313 - 2² = 23221330309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221330333) 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, 1401338 + ... + 1417811.

It is an arithmetic number, because the mean of its divisors is an integer number (5806039425).

Almost surely, 2^23221330313 is an apocalyptic number.

It is an amenable number.

23221330313 is a deficient number, since it is larger than the sum of its proper divisors (2827387).

23221330313 is an equidigital number, since it uses as much as digits as its factorization.

23221330313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827386.

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

Adding to 23221330313 its reverse (31303312232), we get a palindrome (54524642545).

The spelling of 23221330313 in words is "twenty-three billion, two hundred twenty-one million, three hundred thirty thousand, three hundred thirteen".