23223021361 has 2 divisors, whose sum is σ = 23223021362. Its totient is φ = 23223021360.

The previous prime is 23223021359. The next prime is 23223021373. The reversal of 23223021361 is 16312032232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16216494336 + 7006527025 = 127344^2 + 83705^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223021361 - 2¹ = 23223021359 is a prime.

It is a super-2 number, since 2×23223021361² (a number of 22 digits) contains 22 as substring.

Together with 23223021359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23223021061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611510680 + 11611510681.

It is an arithmetic number, because the mean of its divisors is an integer number (11611510681).

Almost surely, 2^23223021361 is an apocalyptic number.

It is an amenable number.

23223021361 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223021361 is an equidigital number, since it uses as much as digits as its factorization.

23223021361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 23223021361 its reverse (16312032232), we get a palindrome (39535053593).

The spelling of 23223021361 in words is "twenty-three billion, two hundred twenty-three million, twenty-one thousand, three hundred sixty-one".