11030330021 has 2 divisors, whose sum is σ = 11030330022. Its totient is φ = 11030330020.

The previous prime is 11030329987. The next prime is 11030330033. The reversal of 11030330021 is 12003303011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8506372900 + 2523957121 = 92230^2 + 50239^2 .

It is a cyclic number.

It is not a de Polignac number, because 11030330021 - 2⁶ = 11030329957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11030329978 and 11030330005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11030330321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515165010 + 5515165011.

It is an arithmetic number, because the mean of its divisors is an integer number (5515165011).

Almost surely, 2^11030330021 is an apocalyptic number.

It is an amenable number.

11030330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11030330021 is an equidigital number, since it uses as much as digits as its factorization.

11030330021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 11030330021 its reverse (12003303011), we get a palindrome (23033633032).

The spelling of 11030330021 in words is "eleven billion, thirty million, three hundred thirty thousand, twenty-one".