545421012223 has 2 divisors, whose sum is σ = 545421012224. Its totient is φ = 545421012222.

The previous prime is 545421012217. The next prime is 545421012259. The reversal of 545421012223 is 322210124545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545421012223 - 2⁹ = 545421011711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545421012203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272710506111 + 272710506112.

It is an arithmetic number, because the mean of its divisors is an integer number (272710506112).

Almost surely, 2^545421012223 is an apocalyptic number.

545421012223 is a deficient number, since it is larger than the sum of its proper divisors (1).

545421012223 is an equidigital number, since it uses as much as digits as its factorization.

545421012223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 545421012223 its reverse (322210124545), we get a palindrome (867631136768).

The spelling of 545421012223 in words is "five hundred forty-five billion, four hundred twenty-one million, twelve thousand, two hundred twenty-three".