102012523 has 2 divisors, whose sum is σ = 102012524. Its totient is φ = 102012522.

The previous prime is 102012511. The next prime is 102012553. The reversal of 102012523 is 325210201.

It is a weak prime.

It is an emirp because it is prime and its reverse (325210201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102012523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012497 and 102012506.

It is not a weakly prime, because it can be changed into another prime (102012503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51006261 + 51006262.

It is an arithmetic number, because the mean of its divisors is an integer number (51006262).

Almost surely, 2^102012523 is an apocalyptic number.

102012523 is a deficient number, since it is larger than the sum of its proper divisors (1).

102012523 is an equidigital number, since it uses as much as digits as its factorization.

102012523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102012523 is about 10100.1249002178. The cubic root of 102012523 is about 467.2519934820.

Adding to 102012523 its reverse (325210201), we get a palindrome (427222724).

The spelling of 102012523 in words is "one hundred two million, twelve thousand, five hundred twenty-three".