100103123321 has 4 divisors (see below), whose sum is σ = 100168000512. Its totient is φ = 100038246132.

The previous prime is 100103123317. The next prime is 100103123371. The reversal of 100103123321 is 123321301001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123321301001 = 90059 ⋅1369339.

It is a cyclic number.

It is not a de Polignac number, because 100103123321 - 2² = 100103123317 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 100103123321.

It is not an unprimeable number, because it can be changed into a prime (100103123371) 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, 32436281 + ... + 32439366.

It is an arithmetic number, because the mean of its divisors is an integer number (25042000128).

Almost surely, 2^100103123321 is an apocalyptic number.

It is an amenable number.

100103123321 is a deficient number, since it is larger than the sum of its proper divisors (64877191).

100103123321 is an equidigital number, since it uses as much as digits as its factorization.

100103123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64877190.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100103123321 its reverse (123321301001), we get a palindrome (223424424322).

The spelling of 100103123321 in words is "one hundred billion, one hundred three million, one hundred twenty-three thousand, three hundred twenty-one".