221300311342423 has 2 divisors, whose sum is σ = 221300311342424. Its totient is φ = 221300311342422.

The previous prime is 221300311342421. The next prime is 221300311342427. The reversal of 221300311342423 is 324243113003122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221300311342423 - 2¹ = 221300311342421 is a prime.

Together with 221300311342421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221300311342421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110650155671211 + 110650155671212.

It is an arithmetic number, because the mean of its divisors is an integer number (110650155671212).

Almost surely, 2^{221300311342423} is an apocalyptic number.

221300311342423 is a deficient number, since it is larger than the sum of its proper divisors (1).

221300311342423 is an equidigital number, since it uses as much as digits as its factorization.

221300311342423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 221300311342423 its reverse (324243113003122), we get a palindrome (545543424345545).

The spelling of 221300311342423 in words is "two hundred twenty-one trillion, three hundred billion, three hundred eleven million, three hundred forty-two thousand, four hundred twenty-three".