100001323 has 4 divisors (see below), whose sum is σ = 100438240. Its totient is φ = 99564408.

The previous prime is 100001303. The next prime is 100001329. The reversal of 100001323 is 323100001.

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 100001323 - 2²¹ = 97904171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100001329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218115 + ... + 218572.

It is an arithmetic number, because the mean of its divisors is an integer number (25109560).

Almost surely, 2^100001323 is an apocalyptic number.

100001323 is a deficient number, since it is larger than the sum of its proper divisors (436917).

100001323 is an equidigital number, since it uses as much as digits as its factorization.

100001323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436916.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 100001323 is about 10000.0661497812. The cubic root of 100001323 is about 464.1609302929.

Adding to 100001323 its reverse (323100001), we get a palindrome (423101324).

It can be divided in two parts, 100001 and 323, that multiplied together give a palindrome (32300323).

The spelling of 100001323 in words is "one hundred million, one thousand, three hundred twenty-three".