23221112515361 has 2 divisors, whose sum is σ = 23221112515362. Its totient is φ = 23221112515360.

The previous prime is 23221112515319. The next prime is 23221112515369. The reversal of 23221112515361 is 16351521112232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22985130306961 + 235982208400 = 4794281^2 + 485780^2 .

It is a cyclic number.

It is not a de Polignac number, because 23221112515361 - 2⁶ = 23221112515297 is a prime.

It is not a weakly prime, because it can be changed into another prime (23221112515369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610556257680 + 11610556257681.

It is an arithmetic number, because the mean of its divisors is an integer number (11610556257681).

Almost surely, 2^{23221112515361} is an apocalyptic number.

It is an amenable number.

23221112515361 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221112515361 is an equidigital number, since it uses as much as digits as its factorization.

23221112515361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

Adding to 23221112515361 its reverse (16351521112232), we get a palindrome (39572633627593).

The spelling of 23221112515361 in words is "twenty-three trillion, two hundred twenty-one billion, one hundred twelve million, five hundred fifteen thousand, three hundred sixty-one".