100101001321 has 4 divisors (see below), whose sum is σ = 100122953044. Its totient is φ = 100079049600.

The previous prime is 100101001277. The next prime is 100101001361. The reversal of 100101001321 is 123100101001.

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 28670955625 + 71430045696 = 169325^2 + 267264^2 .

It is a cyclic number.

It is not a de Polignac number, because 100101001321 - 2¹³ = 100100993129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100101001298 and 100101001307.

It is not an unprimeable number, because it can be changed into a prime (100101001361) 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, 10969020 + ... + 10978141.

It is an arithmetic number, because the mean of its divisors is an integer number (25030738261).

Almost surely, 2^100101001321 is an apocalyptic number.

It is an amenable number.

100101001321 is a deficient number, since it is larger than the sum of its proper divisors (21951723).

100101001321 is an equidigital number, since it uses as much as digits as its factorization.

100101001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21951722.

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

Adding to 100101001321 its reverse (123100101001), we get a palindrome (223201102322).

The spelling of 100101001321 in words is "one hundred billion, one hundred one million, one thousand, three hundred twenty-one".