100123273 has 4 divisors (see below), whose sum is σ = 103353088. Its totient is φ = 96893460.

The previous prime is 100123253. The next prime is 100123291. The reversal of 100123273 is 372321001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100123273 - 2⁵ = 100123241 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100123273.

It is not an unprimeable number, because it can be changed into a prime (100123213) 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, 1614861 + ... + 1614922.

It is an arithmetic number, because the mean of its divisors is an integer number (25838272).

Almost surely, 2^100123273 is an apocalyptic number.

It is an amenable number.

100123273 is a deficient number, since it is larger than the sum of its proper divisors (3229815).

100123273 is an equidigital number, since it uses as much as digits as its factorization.

100123273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229814.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 100123273 is about 10006.1617516408. The cubic root of 100123273 is about 464.3495325698.

Adding to 100123273 its reverse (372321001), we get a palindrome (472444274).

The spelling of 100123273 in words is "one hundred million, one hundred twenty-three thousand, two hundred seventy-three".