223103723449 has 2 divisors, whose sum is σ = 223103723450. Its totient is φ = 223103723448.

The previous prime is 223103723417. The next prime is 223103723477. The reversal of 223103723449 is 944327301322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143372036025 + 79731687424 = 378645^2 + 282368^2 .

It is a cyclic number.

It is not a de Polignac number, because 223103723449 - 2⁵ = 223103723417 is a prime.

It is a super-3 number, since 3×223103723449³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223103723149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111551861724 + 111551861725.

It is an arithmetic number, because the mean of its divisors is an integer number (111551861725).

Almost surely, 2^223103723449 is an apocalyptic number.

It is an amenable number.

223103723449 is a deficient number, since it is larger than the sum of its proper divisors (1).

223103723449 is an equidigital number, since it uses as much as digits as its factorization.

223103723449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 223103723449 in words is "two hundred twenty-three billion, one hundred three million, seven hundred twenty-three thousand, four hundred forty-nine".