23312211221329 has 2 divisors, whose sum is σ = 23312211221330. Its totient is φ = 23312211221328.

The previous prime is 23312211221261. The next prime is 23312211221393. The reversal of 23312211221329 is 92312211221332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21554338302225 + 1757872919104 = 4642665^2 + 1325848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23312211221329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23312211221294 and 23312211221303.

It is not a weakly prime, because it can be changed into another prime (23312211221399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656105610664 + 11656105610665.

It is an arithmetic number, because the mean of its divisors is an integer number (11656105610665).

Almost surely, 2^{23312211221329} is an apocalyptic number.

It is an amenable number.

23312211221329 is a deficient number, since it is larger than the sum of its proper divisors (1).

23312211221329 is an equidigital number, since it uses as much as digits as its factorization.

23312211221329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The spelling of 23312211221329 in words is "twenty-three trillion, three hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, three hundred twenty-nine".