223313781629 has 2 divisors, whose sum is σ = 223313781630. Its totient is φ = 223313781628.

The previous prime is 223313781599. The next prime is 223313781631. The reversal of 223313781629 is 926187313322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167571516025 + 55742265604 = 409355^2 + 236098^2 .

It is a cyclic number.

It is not a de Polignac number, because 223313781629 - 2²⁰ = 223312733053 is a prime.

It is a Sophie Germain prime.

Together with 223313781631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223313781029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656890814 + 111656890815.

It is an arithmetic number, because the mean of its divisors is an integer number (111656890815).

Almost surely, 2^223313781629 is an apocalyptic number.

It is an amenable number.

223313781629 is a deficient number, since it is larger than the sum of its proper divisors (1).

223313781629 is an equidigital number, since it uses as much as digits as its factorization.

223313781629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The spelling of 223313781629 in words is "two hundred twenty-three billion, three hundred thirteen million, seven hundred eighty-one thousand, six hundred twenty-nine".