11100030421 has 2 divisors, whose sum is σ = 11100030422. Its totient is φ = 11100030420.

The previous prime is 11100030419. The next prime is 11100030433. The reversal of 11100030421 is 12403000111.

11100030421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8530554321 + 2569476100 = 92361^2 + 50690^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100030421 - 2¹ = 11100030419 is a prime.

Together with 11100030419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100031421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550015210 + 5550015211.

It is an arithmetic number, because the mean of its divisors is an integer number (5550015211).

Almost surely, 2^11100030421 is an apocalyptic number.

It is an amenable number.

11100030421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100030421 is an equidigital number, since it uses as much as digits as its factorization.

11100030421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11100030421 its reverse (12403000111), we get a palindrome (23503030532).

The spelling of 11100030421 in words is "eleven billion, one hundred million, thirty thousand, four hundred twenty-one".