102312227 has 2 divisors, whose sum is σ = 102312228. Its totient is φ = 102312226.

The previous prime is 102312209. The next prime is 102312247. The reversal of 102312227 is 722213201.

It is an a-pointer prime, because the next prime (102312247) can be obtained adding 102312227 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (722213201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102312227 - 2⁶ = 102312163 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102312199 and 102312208.

It is not a weakly prime, because it can be changed into another prime (102312247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51156113 + 51156114.

It is an arithmetic number, because the mean of its divisors is an integer number (51156114).

Almost surely, 2^102312227 is an apocalyptic number.

102312227 is a deficient number, since it is larger than the sum of its proper divisors (1).

102312227 is an equidigital number, since it uses as much as digits as its factorization.

102312227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 102312227 is about 10114.9506672055. The cubic root of 102312227 is about 467.7091281278.

Adding to 102312227 its reverse (722213201), we get a palindrome (824525428).

The spelling of 102312227 in words is "one hundred two million, three hundred twelve thousand, two hundred twenty-seven".