102402441217 has 2 divisors, whose sum is σ = 102402441218. Its totient is φ = 102402441216.

The previous prime is 102402441179. The next prime is 102402441247. The reversal of 102402441217 is 712144204201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88733090161 + 13669351056 = 297881^2 + 116916^2 .

It is a cyclic number.

It is not a de Polignac number, because 102402441217 - 2²⁷ = 102268223489 is a prime.

It is a super-3 number, since 3×102402441217³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (102402441247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201220608 + 51201220609.

It is an arithmetic number, because the mean of its divisors is an integer number (51201220609).

Almost surely, 2^102402441217 is an apocalyptic number.

It is an amenable number.

102402441217 is a deficient number, since it is larger than the sum of its proper divisors (1).

102402441217 is an equidigital number, since it uses as much as digits as its factorization.

102402441217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 102402441217 its reverse (712144204201), we get a palindrome (814546645418).

The spelling of 102402441217 in words is "one hundred two billion, four hundred two million, four hundred forty-one thousand, two hundred seventeen".