101330111231021 has 2 divisors, whose sum is σ = 101330111231022. Its totient is φ = 101330111231020.

The previous prime is 101330111231009. The next prime is 101330111231047. The reversal of 101330111231021 is 120132111033101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101322624655396 + 7486575625 = 10065914^2 + 86525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101330111231021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101330111230984 and 101330111231002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101330111230021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50665055615510 + 50665055615511.

It is an arithmetic number, because the mean of its divisors is an integer number (50665055615511).

Almost surely, 2^{101330111231021} is an apocalyptic number.

It is an amenable number.

101330111231021 is a deficient number, since it is larger than the sum of its proper divisors (1).

101330111231021 is an equidigital number, since it uses as much as digits as its factorization.

101330111231021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 101330111231021 its reverse (120132111033101), we get a palindrome (221462222264122).

The spelling of 101330111231021 in words is "one hundred one trillion, three hundred thirty billion, one hundred eleven million, two hundred thirty-one thousand, twenty-one".