100331032321 has 8 divisors (see below), whose sum is σ = 108118400040. Its totient is φ = 92553606912.

The previous prime is 100331032267. The next prime is 100331032339. The reversal of 100331032321 is 123230133001.

It can be written as a sum of positive squares in 4 ways, for example, as 2546615296 + 97784417025 = 50464^2 + 312705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100331032321 - 2¹⁵ = 100330999553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100331032421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2464606 + ... + 2504983.

It is an arithmetic number, because the mean of its divisors is an integer number (13514800005).

Almost surely, 2^100331032321 is an apocalyptic number.

It is an amenable number.

100331032321 is a deficient number, since it is larger than the sum of its proper divisors (7787367719).

100331032321 is a wasteful number, since it uses less digits than its factorization.

100331032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971155.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 100331032321 its reverse (123230133001), we get a palindrome (223561165322).

The spelling of 100331032321 in words is "one hundred billion, three hundred thirty-one million, thirty-two thousand, three hundred twenty-one".