100405331306 has 12 divisors (see below), whose sum is σ = 175197057858. Its totient is φ = 43030856232.

The previous prime is 100405331267. The next prime is 100405331309. The reversal of 100405331306 is 603133504001.

It can be written as a sum of positive squares in only one way, i.e., 92485933225 + 7919398081 = 304115^2 + 88991^2 .

It is not an unprimeable number, because it can be changed into a prime (100405331309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512272001 + ... + 512272196.

Almost surely, 2^100405331306 is an apocalyptic number.

100405331306 is a deficient number, since it is larger than the sum of its proper divisors (74791726552).

100405331306 is a wasteful number, since it uses less digits than its factorization.

100405331306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024544213 (or 1024544206 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 100405331306 its reverse (603133504001), we get a palindrome (703538835307).

The spelling of 100405331306 in words is "one hundred billion, four hundred five million, three hundred thirty-one thousand, three hundred six".