223513857011 has 2 divisors, whose sum is σ = 223513857012. Its totient is φ = 223513857010.

The previous prime is 223513856947. The next prime is 223513857029. The reversal of 223513857011 is 110758315322.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223513857011 - 2⁶ = 223513856947 is a prime.

It is not a weakly prime, because it can be changed into another prime (223513857211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111756928505 + 111756928506.

It is an arithmetic number, because the mean of its divisors is an integer number (111756928506).

Almost surely, 2^223513857011 is an apocalyptic number.

223513857011 is a deficient number, since it is larger than the sum of its proper divisors (1).

223513857011 is an equidigital number, since it uses as much as digits as its factorization.

223513857011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 223513857011 in words is "two hundred twenty-three billion, five hundred thirteen million, eight hundred fifty-seven thousand, eleven".