100321220323 has 4 divisors (see below), whose sum is σ = 100323070848. Its totient is φ = 100319369800.

The previous prime is 100321220299. The next prime is 100321220327. The reversal of 100321220323 is 323022123001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100321220323 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 100321220323.

It is not an unprimeable number, because it can be changed into a prime (100321220327) 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, 841411 + ... + 953212.

It is an arithmetic number, because the mean of its divisors is an integer number (25080767712).

Almost surely, 2^100321220323 is an apocalyptic number.

100321220323 is a deficient number, since it is larger than the sum of its proper divisors (1850525).

100321220323 is an equidigital number, since it uses as much as digits as its factorization.

100321220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850524.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 100321220323 its reverse (323022123001), we get a palindrome (423343343324).

The spelling of 100321220323 in words is "one hundred billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twenty-three".