223105445256481 has 2 divisors, whose sum is σ = 223105445256482. Its totient is φ = 223105445256480.

The previous prime is 223105445256461. The next prime is 223105445256493. The reversal of 223105445256481 is 184652544501322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216870391310400 + 6235053946081 = 14726520^2 + 2497009^2 .

It is a cyclic number.

It is not a de Polignac number, because 223105445256481 - 2²¹ = 223105443159329 is a prime.

It is a super-3 number, since 3×223105445256481³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (223105445256461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111552722628240 + 111552722628241.

It is an arithmetic number, because the mean of its divisors is an integer number (111552722628241).

Almost surely, 2^{223105445256481} is an apocalyptic number.

It is an amenable number.

223105445256481 is a deficient number, since it is larger than the sum of its proper divisors (1).

223105445256481 is an equidigital number, since it uses as much as digits as its factorization.

223105445256481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216000, while the sum is 52.

The spelling of 223105445256481 in words is "two hundred twenty-three trillion, one hundred five billion, four hundred forty-five million, two hundred fifty-six thousand, four hundred eighty-one".