100100011321 has 4 divisors (see below), whose sum is σ = 101091100644. Its totient is φ = 99108922000.

The previous prime is 100100011309. The next prime is 100100011379. The reversal of 100100011321 is 123110001001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 88443786025 + 11656225296 = 297395^2 + 107964^2 .

It is a cyclic number.

It is not a de Polignac number, because 100100011321 - 2⁵ = 100100011289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100100011298 and 100100011307.

It is not an unprimeable number, because it can be changed into a prime (100100011021) 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, 495544510 + ... + 495544711.

It is an arithmetic number, because the mean of its divisors is an integer number (25272775161).

Almost surely, 2^100100011321 is an apocalyptic number.

It is an amenable number.

100100011321 is a deficient number, since it is larger than the sum of its proper divisors (991089323).

100100011321 is an equidigital number, since it uses as much as digits as its factorization.

100100011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991089322.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 100100011321 its reverse (123110001001), we get a palindrome (223210012322).

The spelling of 100100011321 in words is "one hundred billion, one hundred million, eleven thousand, three hundred twenty-one".