100030523 has 4 divisors (see below), whose sum is σ = 102158880. Its totient is φ = 97902168.

The previous prime is 100030507. The next prime is 100030543. The reversal of 100030523 is 325030001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100030523 - 2⁴ = 100030507 is a prime.

It is a super-2 number, since 2×100030523² = 20012211063307058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100030498 and 100030507.

It is not an unprimeable number, because it can be changed into a prime (100030543) 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, 1064108 + ... + 1064201.

It is an arithmetic number, because the mean of its divisors is an integer number (25539720).

Almost surely, 2^100030523 is an apocalyptic number.

100030523 is a deficient number, since it is larger than the sum of its proper divisors (2128357).

100030523 is an equidigital number, since it uses as much as digits as its factorization.

100030523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128356.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 100030523 is about 10001.5260335611. The cubic root of 100030523 is about 464.2061036292.

Adding to 100030523 its reverse (325030001), we get a palindrome (425060524).

The spelling of 100030523 in words is "one hundred million, thirty thousand, five hundred twenty-three".