100523 has 2 divisors, whose sum is σ = 100524. Its totient is φ = 100522.

The previous prime is 100519. The next prime is 100537. The reversal of 100523 is 325001.

It is a weak prime.

It is an emirp because it is prime and its reverse (325001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100523 - 2² = 100519 is a prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (100823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50261 + 50262.

It is an arithmetic number, because the mean of its divisors is an integer number (50262).

2¹⁰⁰⁵²³ is an apocalyptic number.

100523 is a deficient number, since it is larger than the sum of its proper divisors (1).

100523 is an equidigital number, since it uses as much as digits as its factorization.

100523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 100523 is about 317.0536232248. The cubic root of 100523 is about 46.4966660422.

Adding to 100523 its reverse (325001), we get a palindrome (425524).

The spelling of 100523 in words is "one hundred thousand, five hundred twenty-three".