223633420441 has 2 divisors, whose sum is σ = 223633420442. Its totient is φ = 223633420440.

The previous prime is 223633420427. The next prime is 223633420481. The reversal of 223633420441 is 144024336322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196223306841 + 27410113600 = 442971^2 + 165560^2 .

It is a cyclic number.

It is not a de Polignac number, because 223633420441 - 2¹⁵ = 223633387673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223633420397 and 223633420406.

It is not a weakly prime, because it can be changed into another prime (223633420481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111816710220 + 111816710221.

It is an arithmetic number, because the mean of its divisors is an integer number (111816710221).

Almost surely, 2^223633420441 is an apocalyptic number.

It is an amenable number.

223633420441 is a deficient number, since it is larger than the sum of its proper divisors (1).

223633420441 is an equidigital number, since it uses as much as digits as its factorization.

223633420441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 223633420441 its reverse (144024336322), we get a palindrome (367657756763).

The spelling of 223633420441 in words is "two hundred twenty-three billion, six hundred thirty-three million, four hundred twenty thousand, four hundred forty-one".