23231044334221 has 2 divisors, whose sum is σ = 23231044334222. Its totient is φ = 23231044334220.

The previous prime is 23231044334177. The next prime is 23231044334257. The reversal of 23231044334221 is 12243344013232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20189295562500 + 3041748771721 = 4493250^2 + 1744061^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231044334221 - 2¹⁷ = 23231044203149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23231044334291) 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 as a sum of consecutive naturals, namely, 11615522167110 + 11615522167111.

It is an arithmetic number, because the mean of its divisors is an integer number (11615522167111).

Almost surely, 2^{23231044334221} is an apocalyptic number.

It is an amenable number.

23231044334221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23231044334221 is an equidigital number, since it uses as much as digits as its factorization.

23231044334221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 23231044334221 its reverse (12243344013232), we get a palindrome (35474388347453).

The spelling of 23231044334221 in words is "twenty-three trillion, two hundred thirty-one billion, forty-four million, three hundred thirty-four thousand, two hundred twenty-one".