100111234321 has 4 divisors (see below), whose sum is σ = 114412839232. Its totient is φ = 85809629412.

The previous prime is 100111234313. The next prime is 100111234331. The reversal of 100111234321 is 123432111001.

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 100111234321 - 2³ = 100111234313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111234331) 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, 7150802445 + ... + 7150802458.

It is an arithmetic number, because the mean of its divisors is an integer number (28603209808).

Almost surely, 2^100111234321 is an apocalyptic number.

It is an amenable number.

100111234321 is a deficient number, since it is larger than the sum of its proper divisors (14301604911).

100111234321 is an equidigital number, since it uses as much as digits as its factorization.

100111234321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14301604910.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 100111234321 its reverse (123432111001), we get a palindrome (223543345322).

The spelling of 100111234321 in words is "one hundred billion, one hundred eleven million, two hundred thirty-four thousand, three hundred twenty-one".