102123017 has 2 divisors, whose sum is σ = 102123018. Its totient is φ = 102123016.

The previous prime is 102123011. The next prime is 102123023. The reversal of 102123017 is 710321201.

It is a balanced prime because it is at equal distance from previous prime (102123011) and next prime (102123023).

It can be written as a sum of positive squares in only one way, i.e., 87254281 + 14868736 = 9341^2 + 3856^2 .

It is a cyclic number.

It is not a de Polignac number, because 102123017 - 2⁴ = 102123001 is a prime.

It is a super-2 number, since 2×102123017² = 20858221202364578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102122986 and 102123004.

It is not a weakly prime, because it can be changed into another prime (102123011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51061508 + 51061509.

It is an arithmetic number, because the mean of its divisors is an integer number (51061509).

Almost surely, 2^102123017 is an apocalyptic number.

It is an amenable number.

102123017 is a deficient number, since it is larger than the sum of its proper divisors (1).

102123017 is an equidigital number, since it uses as much as digits as its factorization.

102123017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 102123017 is about 10105.5933521986. The cubic root of 102123017 is about 467.4206326226.

Adding to 102123017 its reverse (710321201), we get a palindrome (812444218).

The spelling of 102123017 in words is "one hundred two million, one hundred twenty-three thousand, seventeen".