101100331120021 has 2 divisors, whose sum is σ = 101100331120022. Its totient is φ = 101100331120020.

The previous prime is 101100331120013. The next prime is 101100331120073. The reversal of 101100331120021 is 120021133001101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101100008522500 + 322597521 = 10054850^2 + 17961^2 .

It is a cyclic number.

It is not a de Polignac number, because 101100331120021 - 2³ = 101100331120013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101100331119977 and 101100331120004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101100331120121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550165560010 + 50550165560011.

It is an arithmetic number, because the mean of its divisors is an integer number (50550165560011).

Almost surely, 2^{101100331120021} is an apocalyptic number.

It is an amenable number.

101100331120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101100331120021 is an equidigital number, since it uses as much as digits as its factorization.

101100331120021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101100331120021 its reverse (120021133001101), we get a palindrome (221121464121122).

The spelling of 101100331120021 in words is "one hundred one trillion, one hundred billion, three hundred thirty-one million, one hundred twenty thousand, twenty-one".