100113523 has 4 divisors (see below), whose sum is σ = 101104848. Its totient is φ = 99122200.

The previous prime is 100113487. The next prime is 100113551. The reversal of 100113523 is 325311001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325311001 = 101 ⋅3220901.

It is a cyclic number.

It is not a de Polignac number, because 100113523 - 2⁹ = 100113011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100113497 and 100113506.

It is not an unprimeable number, because it can be changed into a prime (100113553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495511 + ... + 495712.

It is an arithmetic number, because the mean of its divisors is an integer number (25276212).

Almost surely, 2^100113523 is an apocalyptic number.

100113523 is a deficient number, since it is larger than the sum of its proper divisors (991325).

100113523 is an equidigital number, since it uses as much as digits as its factorization.

100113523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991324.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 100113523 is about 10005.6745399798. The cubic root of 100113523 is about 464.3344593014.

Adding to 100113523 its reverse (325311001), we get a palindrome (425424524).

The spelling of 100113523 in words is "one hundred million, one hundred thirteen thousand, five hundred twenty-three".