100311330111021 has 6 divisors (see below), whose sum is σ = 144894143493710. Its totient is φ = 66874220074008.

The previous prime is 100311330110993. The next prime is 100311330111053. The reversal of 100311330111021 is 120111033113001.

100311330111021 is a `hidden beast` number, since 1 + 0 + 0 + 311 + 330 + 1 + 1 + 1 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 57200103455625 + 43111226655396 = 7563075^2 + 6565914^2 .

It is not a de Polignac number, because 100311330111021 - 2¹⁹ = 100311329586733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100311330110985 and 100311330111003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311330111521) 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, 5572851672826 + ... + 5572851672843.

Almost surely, 2^{100311330111021} is an apocalyptic number.

It is an amenable number.

100311330111021 is a deficient number, since it is larger than the sum of its proper divisors (44582813382689).

100311330111021 is a wasteful number, since it uses less digits than its factorization.

100311330111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11145703345675 (or 11145703345672 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 100311330111021 its reverse (120111033113001), we get a palindrome (220422363224022).

The spelling of 100311330111021 in words is "one hundred trillion, three hundred eleven billion, three hundred thirty million, one hundred eleven thousand, twenty-one".