28056310223 has 2 divisors, whose sum is σ = 28056310224. Its totient is φ = 28056310222.

The previous prime is 28056310211. The next prime is 28056310231. The reversal of 28056310223 is 32201365082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28056310223 - 2³⁰ = 26982568399 is a prime.

It is a super-3 number, since 3×28056310223³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28056310223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28056310253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14028155111 + 14028155112.

It is an arithmetic number, because the mean of its divisors is an integer number (14028155112).

Almost surely, 2^28056310223 is an apocalyptic number.

28056310223 is a deficient number, since it is larger than the sum of its proper divisors (1).

28056310223 is an equidigital number, since it uses as much as digits as its factorization.

28056310223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 28056310223 in words is "twenty-eight billion, fifty-six million, three hundred ten thousand, two hundred twenty-three".