223103212009 has 2 divisors, whose sum is σ = 223103212010. Its totient is φ = 223103212008.

The previous prime is 223103211949. The next prime is 223103212027. The reversal of 223103212009 is 900212301322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161400652009 + 61702560000 = 401747^2 + 248400^2 .

It is a cyclic number.

It is not a de Polignac number, because 223103212009 - 2¹⁵ = 223103179241 is a prime.

It is a super-3 number, since 3×223103212009³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223103212049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111551606004 + 111551606005.

It is an arithmetic number, because the mean of its divisors is an integer number (111551606005).

Almost surely, 2^223103212009 is an apocalyptic number.

It is an amenable number.

223103212009 is a deficient number, since it is larger than the sum of its proper divisors (1).

223103212009 is an equidigital number, since it uses as much as digits as its factorization.

223103212009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 223103212009 in words is "two hundred twenty-three billion, one hundred three million, two hundred twelve thousand, nine".