102020002247 has 2 divisors, whose sum is σ = 102020002248. Its totient is φ = 102020002246.

The previous prime is 102020002243. The next prime is 102020002291. The reversal of 102020002247 is 742200020201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102020002247 - 2² = 102020002243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102020002243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010001123 + 51010001124.

It is an arithmetic number, because the mean of its divisors is an integer number (51010001124).

Almost surely, 2^102020002247 is an apocalyptic number.

102020002247 is a deficient number, since it is larger than the sum of its proper divisors (1).

102020002247 is an equidigital number, since it uses as much as digits as its factorization.

102020002247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

Adding to 102020002247 its reverse (742200020201), we get a palindrome (844220022448).

The spelling of 102020002247 in words is "one hundred two billion, twenty million, two thousand, two hundred forty-seven".