223513856947 has 2 divisors, whose sum is σ = 223513856948. Its totient is φ = 223513856946.

The previous prime is 223513856911. The next prime is 223513857011. The reversal of 223513856947 is 749658315322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223513856947 - 2³⁵ = 189154118579 is a prime.

It is not a weakly prime, because it can be changed into another prime (223513856047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111756928473 + 111756928474.

It is an arithmetic number, because the mean of its divisors is an integer number (111756928474).

Almost surely, 2^223513856947 is an apocalyptic number.

223513856947 is a deficient number, since it is larger than the sum of its proper divisors (1).

223513856947 is an equidigital number, since it uses as much as digits as its factorization.

223513856947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The spelling of 223513856947 in words is "two hundred twenty-three billion, five hundred thirteen million, eight hundred fifty-six thousand, nine hundred forty-seven".